US2717797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch mechanism
Assignee: CRAMPTON Manufacturing CO
•
Filing: 1951-01-27
•
Granted: 1955-09-13
•
Expires: 1971-01-27
Abstract
No abstract record available.
Inventors
- 👤 Leonard H Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:34
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/0042; Y; Y10; Y10S; Y10S292/00; Y10S292/71; Y10T; Y10T292/00; Y10T292/175; Y10T292/18; Y10T292/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US419881A
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US1634013A
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US1937978A
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US2044500A
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US2451381A
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US2385961A
Cited
US2558233A
Cited
US2561201A
Cited
US2525019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |