Patent US4218341A successfully refreshed from Google Patents.
Patent US2183672A successfully refreshed from Google Patents.
US2183672A
Expired / Lapsed
US
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Latch mechanism
Assignee: Individual
•
Filing: 1938-09-02
•
Granted: 1939-12-19
•
Expires: 1958-09-02
Abstract
No abstract record available.
Inventors
- 👤 William C Devereaux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:49
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/22; Y; Y10; Y10S; Y10S292/00; Y10S292/40; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49945; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0976; Y10T292/0977; Y10T292/0978; Y10T292/0979; Y10T292/0982; Y10T292/0983; Y10T292/0984; Y10T292/42; Y10T292/432; Y10T292/68; Y10T292/688
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-12-18 | 1943-06-19 | 1943-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-12-18 | 1947-06-19 | 1947-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-12-18 | 1951-06-19 | 1951-12-19 | $7700.00 | Window Closed / Lapsed |