Patent US1800818A successfully refreshed from Google Patents.
US1800818A
Expired / Lapsed
US
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Latch-shaft-fastening means
Assignee: Individual
•
Filing: 1926-09-29
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Granted: 1931-04-14
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Expires: 1946-09-29
Abstract
No abstract record available.
Inventors
- 👤 William C Devereaux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:51
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/22; Y; Y10; Y10S; Y10S292/00; Y10S292/53; Y10S70/00; Y10S70/31; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/0978; Y10T292/59; Y10T292/85; Y10T292/865
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) | 1934-04-13 | 1934-10-13 | 1935-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-04-13 | 1938-10-13 | 1939-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-04-13 | 1942-10-13 | 1943-04-14 | $7700.00 | Window Closed / Lapsed |