Patent US2790688A successfully refreshed from Google Patents.
US2790688A
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US
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Latch device
Assignee: J E MEACHAM
•
Filing: 1956-10-08
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Granted: 1957-04-30
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Expires: 1976-10-08
Abstract
No abstract record available.
Inventors
- 👤 William L Shepherdson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:19
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/10; F16B12/12; F16B12/20; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0926; Y10T292/0928; Y10T292/0934; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1061; Y10T292/42; Y10T292/444
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US995942A
Cited
US1917916A
Cited
US1964556A
Cited
US2214301A
Cited
US2318945A
Cited
US2621992A
Cited
US2723890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |