TABLE OF CONTENTS
- Storing official dates & numbers
- Best practices for official date and number storage
- Field Definitions
Storing official dates & numbers
Official dates like the filing, publication and grant date of an application are stored in special fields called ‘History dates’. You can store the date, country code where the office resides, and number within each field.
For example, a ‘First Filing’ application filed at the UKIPO might have a ‘Filing’ history date field that looks a bit like this:

Each history date field has a unique numerical identifier called a ‘History ID’ or ‘HID’. These are useful to know about, as they appear in things like template merge codes that allow you to pull this data into emails and letters. Additional history dates can be added into the system depending on your requirements, but our base set is usually enough.
| History name | History ID (HID) |
|---|---|
| Earliest Priority | 1 |
| Filing | 2 |
| Publication | 3 |
| Grant | 4 |
| Lodged | 5 |
| PCT Filing | 200 |
| PCT Publication | 201 |
| Parent Filing | 202 |
| Parent Publication | 203 |
| Parent Grant | 204 |
| Opposition Filing | 205 |
| Opposed Application | 206 |
Each history date should be used to store dates and numbers in a specific way, to ensure consistency across your system. This is especially important when you’re setting up correspondence templates to pull in dates and numbers in specific scenarios.
Best practices for official date and number storage
Patent
| First Filing | Claiming Priority | Nationalisation Of PCT | Validation of EP | Divisional | Continuation | Continuation in Part | SPC | |
|---|---|---|---|---|---|---|---|---|
| Earliest Priority | earliest priority date, CC, number | earliest priority date, CC, number | earliest priority date, CC, number | earliest priority date, CC, number | earliest priority date, CC, number | earliest priority date, CC, number | earliest priority date, CC, number | |
| Filing | local filing date, CC, number | local filing date, CC, number | PCT parent filing date, local CC and number | parent EP filing date, CC, number | parent filing date and CC, local filing number | parent filing date and CC, local filing number | parent filing date and CC, local filing number | local filing date, CC, number |
| Publication | local publication date, CC, number | local publication date, CC, number | local publication date, CC, number | parent publication date, CC, number | local publication date, CC, number | local publication date, CC, number | local publication date, CC, number | local publication date, CC, number |
| Grant | local grant date, CC, number | local grant date, CC, number | local grant date, CC, number | parent grant date, CC, number | local grant date, CC, number | local grant date, CC, number | local grant date, CC, number | local grant date, CC, number |
| Lodged | local filing date, CC, number | local filing date, CC, number | local filing date, CC, number | local filing date, CC, number | local filing date, CC, number | |||
| PCT Filing | PCT parent filing date, CC, number | |||||||
| PCT Publication | PCT publication date, CC, number | |||||||
| Parent Filing | parent filing date, CC, number | parent filing date, CC, number | parent filing date, CC, number | parent filing date, CC, number | ||||
| Parent Grant | parent grant date, CC, number |
Trade Mark
| First Filing | Claiming Priority | National Right of Madrid | |
|---|---|---|---|
| Earliest Priority | earliest priority date, CC, number | earliest priority date, CC, number | |
| Filing | local filing date, CC, number | local filing date, CC, number | Madrid parent filing date, CC and number |
| Publication | local publication date, CC, filing number | local publication date, CC, filing number | local publication date, CC, filing number |
| Grant | local grant date, CC, filing number | local grant date, CC, filing number | local grant date, CC, filing number |
| Lodged | local filing date, CC, number (if subsequent designation) |
Design
| First Filing | Claiming Priority | Nationalisation Right of Hague | Divisional | |
|---|---|---|---|---|
| Earliest Priority | earliest priority date, CC, number | earliest priority date, CC, number | earliest priority date, CC, number | |
| Filing | local filing date, CC, number | local filing date, CC, number | Hague parent filing date, local CC and number | parent filing date and CC, local filing number |
| Publication | local publication date, CC, number | local publication date, CC, number | local publication date, CC, number | local publication date, CC, number |
| Grant | local grant date, CC, number | local grant date, CC, number | local grant date, CC, number | local grant date, CC, number |
| Lodged | local filing date, CC, number | local filing date, CC, number | ||
| Parent Filing | parent filing date, CC, number |
Opposition
| Filed by us – Patent | Filed by us – Trade Mark | Filed against us - Patent | Filed against us – Trade Mark | |
|---|---|---|---|---|
| Opposition Filing | the opposition case filing date, CC, number | the opposition case filing date, CC, number | ||
| Opposed Application | the case we are opposing filing date, CC, number | the case we are opposing filing date, CC, number | our opposed case filing date, CC, number | our opposed case filing date, CC, number |
| Earliest Priority | our opposed case priority date, CC, number | |||
| Publication | the case we are opposing publication date, CC, number | the case we are opposing publication date, CC, number | our opposed case publication date, CC, number | |
| Grant | the case we are opposing grant date, CC, number | our opposed case grant date, CC, number |
Field Definitions
Patent
| Patent Field | Definition | Other Known Names |
| Earliest Priority | the earliest date a patent application claims as its priority, often from a first filing in a patent family | Priority Date, First Filing Date, Base Priority Date |
| Filing | the date the patent application was officially submitted to a patent office | Application Date, Effective Filing Date |
| Publication | the date the patent application is published and made publicly available | Public Disclosure Date |
| Grant | the date the patent is officially granted by the patent office | Issue Date, Patent Date |
| Lodged | the date the patent was formally submitted or recorded locally | Submission Date, Filed Date (in some regions), National/Regional Phase Entry Date, Validation Date |
| PCT Filing | the date a patent application was filed under the Patent Cooperation Treaty (PCT) | International Filing Date, WIPO Application Date |
| PCT Publication | the date the PCT application is published by WIPO | International Publication Date, WIPO Publication Date |
| Parent Filing | the filing date of the original (parent) application from which others (e.g., divisionals, continuations) derive | Original Filing Date, Base Application Date |
| Parent Grant | the grant date of the parent application | Original Grant Date, Base Patent Grant Date |
Trade Mark
| Trade Mark Field | Definition | Other Known Names |
| Earliest Priority | the earliest date a trade mark application claims priority from a previous filing | Priority Date, First Filing Date, Base Priority Date |
| Filing | the date the trade mark application was officially submitted to the IP office | Application Date, Submission Date, Effective Filing Date |
| Publication | the date the trade mark application is published in the official gazette or registry | Advertisement Date, Gazette Date, Public Notice Date |
| Grant | the date the trade mark is registered or granted legal protection | Registration Date, Protection Date, Date of Entry in Register |
| Lodged | the date the trade mark was formally submitted or recorded locally | Subsequent Designation Date, Submission Date, Filed Date (in some regions) |