US3146713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shotgun cartridge
Assignee: Individual
•
Filing: 1962-12-05
•
Granted: 1964-09-01
•
Expires: 1982-12-05
Abstract
No abstract record available.
Inventors
- 👤 Robert J Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:38
CPC Classifications
F; F42; F42B; F42B7/00; F42B7/02; F42B7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN COMBINATION WITH A SHOTGUNCARTIDGE INCLUDING AN ELONGATED CYLINDRICAL CASING HAVING A PERCUSSION CAP, A POWDER CHAMBER, AND A SHOT COLUMN COMPRISED OF IMPERFORATE CIRCULAR FILLER WADS AND A BODY OF SHOT PELLETS, THE PERIPHERIES OF SAID FILLER WADS BEING IN CORRESPONDENCE WITH THE INTERNAL PERIPHERY OF SAID CASING, MEANS FOR CONTROLLING THE VELOCITY OF SAID SHOT COLUMN WHEREBY TO PRODUCE A SHOT PATTERN PARTICULARLY DESIRABLE FOR DUCK HUNTING, SAID MEANS COMPRINSING: A DETERMINED POWDER CHARGE IN SAID CHAMBER; A CIRCULAR DISC OF CARDBOARD OR LIKE MATERIAL INTERPOSED IN SAID CASING BETWEEN SAID POWDER CHARGE AND THE INNERMOST FILLER WAD OF THE SHOT COLUMN, THE PERIPHERY OF SAID DISC BEING IN CORRESPONDENCE WITH THE INTERNAL PERIPHERY OF SAID CASING; AND AN APERTURE HAVING A DIAMETER OF ONE SIXTEENTH OF AN INCH FORMED CENTRALLY IN SAID DISC.
Claim 2
Dependent Claim
136 words
IN COMBINATION WITH A SHOTGUNCARTIDGE INCLUDING AN ELONGATED CYLINDRICAL CASING HAVING A PERCUSSION CAP, A POWDER CHAMBER, AND A SHOT COLUMN COMPRISED OF IMPERFORATE CIRCULAR FILLER WADS AND A BODY OF SHOT PELLETS, THE PERIPHERIES OF SAID FILLER WADS BEING IN CORRESPONDENCE WITH THE INTERNAL PERIPHERY OF SAID CASING, MEANS FOR CONTROLLING THE VELOCITY OF SAID SHOT COLUMN WHEREBY TO PRODUCE A SHOT PATTERN PARTICULARLY DESIRABLE FOR DUCK HUNTING, SAID MEANS COMPRINSING: A DETERMINED POWDER CHARGE IN SAID CHAMBER; A CIRCULAR DISC OF CARDBOARD OR LIKE MATERIAL INTERPOSED IN SAID CASING BETWEEN SAID POWDER CHARGE AND THE INNERMOST FILLER WAD OF THE SHOT COLUMN, THE PERIPHERY OF SAID DISC BEING IN CORRESPONDENCE WITH THE INTERNAL PERIPHERY OF SAID CASING; AND AN APERTURE HAVING A DIAMETER OF ONE SIXTEENTH OF AN INCH FORMED CENTRALLY IN SAID DISC.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |