Patent US2942909A successfully refreshed from Google Patents.
US2942909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch lever
Assignee: Individual
•
Filing: 1957-10-01
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Granted: 1960-06-28
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Expires: 1977-10-01
Abstract
No abstract record available.
Inventors
- 👤 Chase Marston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:05
CPC Classifications
E; E05; E05B; E05B1/00; E05B1/0053; Y; Y10; Y10T; Y10T292/00; Y10T292/57; Y10T292/82; Y10T74/00; Y10T74/20; Y10T74/20546
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733942A
Cited
US1538438A
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US1603722A
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US1624051A
Cited
US1818612A
Cited
US2254040A
Cited
US2355978A
Cited
US2801122A
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 |