Patent US2803956A successfully refreshed from Google Patents.
US2803956A
Expired / Lapsed
US
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Lock and latch device
Assignee: Individual
•
Filing: 1954-06-04
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Granted: 1957-08-27
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Expires: 1974-06-04
Abstract
No abstract record available.
Inventors
- 👤 David R Womer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:10
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/0042; E05B65/0053; Y; Y10; Y10S; Y10S292/00; Y10S292/71; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0926; Y10T292/0928; Y10T292/0933; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1059; Y10T292/106; Y10T70/00; Y10T70/50; Y10T70/5009; Y10T70/5031; Y10T70/5093; Y10T70/5097; Y10T70/5111; Y10T70/5124; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5531
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US289666A
Cited
US872775A
Cited
US1002259A
Cited
US1133254A
Cited
US1556524A
Cited
US1703556A
Cited
US2399812A
Cited
US2440734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |