US2646894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draft gear
Assignee: Individual
•
Filing: 1949-12-27
•
Granted: 1953-07-28
•
Expires: 1969-12-27
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:41
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/04; B61G9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1403617A
Cited
US1696320A
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US1853836A
Cited
US1913414A
Cited
US1951385A
Cited
US2335847A
Cited
US2368641A
Cited
US2398621A
Cited
US2369793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |