Patent US2299646A successfully refreshed from Google Patents.
US2299646A
Expired / Lapsed
US
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Electric operated door unlocker for motor vehicles
Assignee: Individual
•
Filing: 1941-08-06
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Granted: 1942-10-20
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Expires: 1961-08-06
Abstract
No abstract record available.
Inventors
- 👤 Henry A Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:32
CPC Classifications
E; E05; E05B; E05B47/00; E05B47/06; E05B47/0607; E05B47/0001; E05B47/0002; E05B47/0003; E05B47/0004; E05B81/00; E05B81/02; E05B81/04; E05B81/08; Y; Y10; Y10S; Y10S292/00; Y10S292/24; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/1014; Y10T292/1021; Y10T292/1022; Y10T292/1031; Y10T70/00; Y10T70/70; Y10T70/7051; Y10T70/7062; Y10T70/713
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) | 1945-10-19 | 1946-04-20 | 1946-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-10-19 | 1950-04-20 | 1950-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-10-19 | 1954-04-20 | 1954-10-20 | $7700.00 | Window Closed / Lapsed |