US2672943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety lock for automobile doors
Assignee: SELL WELL IND Inc
•
Filing: 1951-01-06
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Granted: 1954-03-23
•
Expires: 1971-01-06
Abstract
No abstract record available.
Inventors
- 👤 Bert H Chatlynne
- 👤 Marvin C Herget
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:13
CPC Classifications
E; E05; E05B; E05B77/00; E05B77/46; E05B77/48; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1021; Y10T70/00; Y10T70/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1627728A
Cited
US1883241A
Cited
US1995889A
Cited
US2211221A
Cited
US2189748A
Cited
US2192262A
Cited
US2530628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |