US2942451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch lock
Assignee: George B Henne & Co Inc
•
Filing: 1957-09-11
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Granted: 1960-06-28
•
Expires: 1977-09-11
Abstract
No abstract record available.
Inventors
- 👤 Windmassinger George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:35
CPC Classifications
E; E05; E05B; E05B55/00; Y; Y10; Y10S; Y10S70/00; Y10S70/06; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/098; Y10T292/0982; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/5341; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/55; Y10T70/5518
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1508668A
Cited
GB463605A
Cited
US2660875A
Cited
US2616738A
Cited
US2666321A
Cited
US2836051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |