| DATAMP Patents by Month for 1981 |
|
This table shows the number of the first patent in the DATAMP
database for each month, broken down by patent type.
|
| Month | Utility | Reissue | Design | X | AI | Patents |
| January
| 4,242,926 | - | - | - | - | [datamp] | [all] |
| February
| 4,248,115 | - | - | - | - | [datamp] | [all] |
| March
| 4,253,351 | - | - | - | - | [datamp] | [all] |
| April
| 4,259,815 | - | - | - | - | [datamp] | [all] |
| May
| 4,265,282 | - | - | - | - | [datamp] | [all] |
| June
| 4,270,275 | - | - | - | - | [datamp] | [all] |
| July
| 4,276,799 | - | - | - | - | [datamp] | [all] |
| August
| 4,281,538 | - | - | - | - | [datamp] | [all] |
| September
| 4,288,185 | - | D260,476 | - | - | [datamp] | [all] |
| October
| 4,292,767 | - | D261,096 | - | - | [datamp] | [all] |
| November
| 4,299,377 | - | - | - | - | [datamp] | [all] |
| December
| 4,303,360 | - | - | - | - | [datamp] | [all] |
|
