Patent US2810185A successfully refreshed from Google Patents.
US2810185A
Expired / Lapsed
US
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Rifling gun barrels
Assignee: MASTER ALLOYS Inc
•
Filing: 1954-06-28
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Granted: 1957-10-22
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Expires: 1974-06-28
Abstract
No abstract record available.
Inventors
- 👤 Simons Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:15
CPC Classifications
B; B23; B23D; B23D37/00; B23D37/14; B23D37/16; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5623; Y10T408/56245; Y10T408/94; Y10T408/95
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1311584A
Cited
US1275028A
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US1329444A
Cited
US1396187A
Cited
US1819257A
Cited
US1951087A
Cited
US2383356A
Cited
US2641822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |