| Patent Issue Date Details |
| This table shows patent issue date data. |
| Grant Date shotgun | Last Utility
patent number | Utility Count |
Datamp Count | Withdrawn count | | 1891-01-06 | 444,412 | 426 | 19 | 1 |
| 1891-01-13 | 444,806 | 394 | 19 | 1 |
| 1891-01-20 | 445,149 | 343 | 22 | 1 |
| 1891-01-27 | 445,529 | 380 | 16 | 0 |
| 1891-02-03 | 445,966 | 437 | 22 | 0 |
| 1891-02-10 | 446,410 | 444 | 24 | 2 |
| 1891-02-17 | 446,843 | 433 | 14 | 0 |
| 1891-02-24 | 447,284 | 441 | 21 | 1 |
| 1891-03-03 | 447,751 | 467 | 12 | 2 |
| 1891-03-10 | 448,191 | 440 | 27 | 1 |
| 1891-03-17 | 448,622 | 431 | 29 | 0 |
| 1891-03-24 | 449,098 | 476 | 17 | 1 |
| 1891-03-31 | 449,652 | 554 | 19 | 1 |
| 1891-04-07 | 450,127 | 475 | 18 | 0 |
| 1891-04-14 | 450,603 | 476 | 24 | 0 |
| 1891-04-21 | 451,008 | 405 | 20 | 0 |
| 1891-04-28 | 451,444 | 436 | 21 | 0 |
| 1891-05-05 | 451,904 | 460 | 28 | 0 |
| 1891-05-12 | 452,351 | 447 | 18 | 0 |
| 1891-05-19 | 452,767 | 416 | 19 | 0 |
| 1891-05-26 | 453,176 | 409 | 23 | 0 |
| 1891-06-02 | 453,604 | 428 | 17 | 0 |
| 1891-06-09 | 454,016 | 412 | 25 | 1 |
| 1891-06-16 | 454,443 | 427 | 13 | 1 |
| 1891-06-23 | 454,834 | 391 | 19 | 0 |
| 1891-06-30 | 455,295 | 461 | 29 | 0 |
| 1891-07-07 | 455,729 | 434 | 23 | 1 |
| 1891-07-14 | 456,129 | 400 | 20 | 1 |
| 1891-07-21 | 456,541 | 412 | 23 | 1 |
| 1891-07-28 | 456,927 | 386 | 13 | 0 |
| 1891-08-04 | 457,333 | 406 | 18 | 0 |
| 1891-08-11 | 457,766 | 433 | 14 | 1 |
| 1891-08-18 | 458,147 | 381 | 13 | 0 |
| 1891-08-25 | 458,554 | 407 | 9 | 0 |
| 1891-09-01 | 458,991 | 437 | 14 | 0 |
| 1891-09-08 | 459,386 | 395 | 11 | 0 |
| 1891-09-15 | 459,731 | 345 | 19 | 0 |
| 1891-09-22 | 460,102 | 371 | 25 | 0 |
| 1891-09-29 | 460,545 | 443 | 25 | 0 |
| 1891-10-06 | 460,937 | 392 | 12 | 2 |
| 1891-10-13 | 461,412 | 475 | 13 | 1 |
| 1891-10-20 | 461,805 | 393 | 20 | 0 |
| 1891-10-27 | 462,225 | 420 | 13 | 0 |
| 1891-11-03 | 462,677 | 452 | 19 | 0 |
| 1891-11-10 | 463,129 | 452 | 15 | 0 |
| 1891-11-17 | 463,608 | 479 | 23 | 0 |
| 1891-11-24 | 463,999 | 391 | 19 | 1 |
| 1891-12-01 | 464,486 | 487 | 18 | 1 |
| 1891-12-08 | 464,948 | 462 | 19 | 3 |
| 1891-12-15 | 465,443 | 495 | 14 | 0 |
| 1891-12-22 | 465,824 | 381 | 15 | 1 |
| 1891-12-29 | 466,314 | 490 | 16 | 0 |
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