US2721750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch mechanism
Assignee: General Dynamics Corp
•
Filing: 1952-01-16
•
Granted: 1955-10-25
•
Expires: 1972-01-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph T Rudis
- 👤 Frederick J Boody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:08
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/02; E05C1/06; E05C1/065; Y; Y10; Y10S; Y10S292/00; Y10S292/31; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US510781A
Cited
US761145A
Cited
US1024837A
Cited
US2261146A
Cited
US2424962A
Cited
FR981093A
Cited
DK57375A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |