| Patent Issue Date Details |
| This table shows patent issue date data. |
| Grant Date shotgun | Last Utility
patent number | Utility Count |
Datamp Count | Withdrawn count | | 1881-01-04 | 236,399 | 263 | 6 | 0 |
| 1881-01-11 | 236,660 | 261 | 11 | 1 |
| 1881-01-18 | 236,867 | 207 | 13 | 1 |
| 1881-01-25 | 237,082 | 215 | 11 | 1 |
| 1881-02-01 | 237,357 | 275 | 14 | 0 |
| 1881-02-08 | 237,667 | 310 | 13 | 1 |
| 1881-02-15 | 237,943 | 276 | 15 | 1 |
| 1881-02-22 | 238,198 | 255 | 10 | 2 |
| 1881-03-01 | 238,478 | 280 | 9 | 2 |
| 1881-03-08 | 238,750 | 272 | 11 | 0 |
| 1881-03-15 | 239,013 | 263 | 13 | 3 |
| 1881-03-22 | 239,301 | 288 | 10 | 1 |
| 1881-03-29 | 239,592 | 291 | 14 | 3 |
| 1881-04-05 | 239,914 | 322 | 14 | 1 |
| 1881-04-12 | 240,216 | 302 | 10 | 6 |
| 1881-04-19 | 240,494 | 278 | 11 | 0 |
| 1881-04-26 | 240,802 | 308 | 9 | 0 |
| 1881-05-03 | 241,112 | 310 | 14 | 0 |
| 1881-05-10 | 241,470 | 358 | 17 | 2 |
| 1881-05-17 | 241,773 | 303 | 21 | 2 |
| 1881-05-24 | 242,098 | 325 | 18 | 1 |
| 1881-05-31 | 242,420 | 322 | 11 | 0 |
| 1881-06-07 | 242,735 | 315 | 10 | 1 |
| 1881-06-14 | 243,052 | 317 | 15 | 1 |
| 1881-06-21 | 243,346 | 294 | 12 | 1 |
| 1881-06-28 | 243,679 | 333 | 17 | 1 |
| 1881-07-05 | 244,021 | 342 | 20 | 1 |
| 1881-07-12 | 244,363 | 342 | 16 | 0 |
| 1881-07-19 | 244,725 | 362 | 15 | 0 |
| 1881-07-26 | 244,967 | 242 | 9 | 0 |
| 1881-08-02 | 245,266 | 299 | 12 | 0 |
| 1881-08-09 | 245,599 | 333 | 14 | 1 |
| 1881-08-16 | 245,925 | 326 | 22 | 0 |
| 1881-08-23 | 246,277 | 352 | 13 | 1 |
| 1881-08-30 | 246,585 | 308 | 17 | 1 |
| 1881-09-06 | 246,857 | 272 | 7 | 1 |
| 1881-09-13 | 247,147 | 290 | 12 | 1 |
| 1881-09-20 | 247,469 | 322 | 6 | 0 |
| 1881-09-27 | 247,734 | 265 | 7 | 1 |
| 1881-10-04 | 248,003 | 269 | 14 | 2 |
| 1881-10-11 | 248,265 | 262 | 10 | 0 |
| 1881-10-18 | 248,565 | 300 | 12 | 2 |
| 1881-10-25 | 248,834 | 269 | 11 | 0 |
| 1881-11-01 | 249,150 | 316 | 17 | 1 |
| 1881-11-08 | 249,443 | 293 | 13 | 5 |
| 1881-11-15 | 249,731 | 288 | 6 | 1 |
| 1881-11-22 | 250,046 | 315 | 13 | 1 |
| 1881-11-29 | 250,328 | 282 | 14 | 1 |
| 1881-12-06 | 250,636 | 308 | 18 | 6 |
| 1881-12-13 | 251,017 | 381 | 11 | 1 |
| 1881-12-20 | 251,343 | 326 | 17 | 0 |
| 1881-12-27 | 251,684 | 341 | 14 | 1 |
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