Patent US3211100A successfully refreshed from Google Patents.
US3211100A
Expired / Lapsed
US
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Wad column
Assignee: Alcan Co Inc
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Filing: 1961-03-13
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Granted: 1965-10-12
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Homer E Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:37
CPC Classifications
F; F42; F42B; F42B7/00; F42B7/02; F42B7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN OVER-POWDER, PRE-ASSEMBLED WAD COLUMN FOR A SHOTGUN CARTRIDGE COMPRISING A SUBSTANTIALLY ELONGATED TUBULAR BODY BEING OPEN AT ONE END, SAID BODY HAVING AN OBTURATING WAD PORTION INTEGRALLY CLOSING ITS OTHER END, A CENTER POST PROVIDED AXIALLY OF SAID BODY, A CLOSURE WAD CLOSING SAID ONE END OF SAID BODY, MEANS PROVIDED ON SAID BODY FOR RECEIVING SAID CLOSURE WAD, AND ANNULAR WALL-FORMING MEANS PROVIDED WITHIN SAID BODY TO DEFINE A PLURALITY OF AIR CELLS.
Claim 2
Dependent Claim
75 words
AN OVER-POWDER, PRE-ASSEMBLED WAD COLUMN FOR A SHOTGUN CARTRIDGE COMPRISING A SUBSTANTIALLY ELONGATED TUBULAR BODY BEING OPEN AT ONE END, SAID BODY HAVING AN OBTURATING WAD PORTION INTEGRALLY CLOSING ITS OTHER END, A CENTER POST PROVIDED AXIALLY OF SAID BODY, A CLOSURE WAD CLOSING SAID ONE END OF SAID BODY, MEANS PROVIDED ON SAID BODY FOR RECEIVING SAID CLOSURE WAD, AND ANNULAR WALL-FORMING MEANS PROVIDED WITHIN SAID BODY TO DEFINE A PLURALITY OF AIR CELLS.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |