Patent US2528746A successfully refreshed from Google Patents.
US2528746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam-operated latch mechanism
Assignee: Individual
•
Filing: 1947-05-19
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Granted: 1950-11-07
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Expires: 1967-05-19
Abstract
No abstract record available.
Inventors
- 👤 Giffin Edward Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:00
CPC Classifications
E; E05; E05B; E05B37/00; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1031; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5642; Y10T70/70; Y10T70/7153; Y10T70/7169; Y10T70/7175; Y10T70/7424
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |