Patent US2161930A successfully refreshed from Google Patents.
US2161930A
Expired / Lapsed
US
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Automatic safety latch for vehicle doors
Assignee: WILLIAM E KREITZER
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Filing: 1937-04-10
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Granted: 1939-06-13
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Expires: 1957-04-10
Abstract
No abstract record available.
Inventors
- 👤 Everett B Niswonger
- 👤 Herbert E Patchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:05
CPC Classifications
E; E05; E05B; E05B77/00; E05B77/52; Y; Y10; Y10S; Y10S292/00; Y10S292/65; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0999; Y10T292/1005
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) | 1942-06-12 | 1942-12-12 | 1943-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-12 | 1946-12-12 | 1947-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-12 | 1950-12-12 | 1951-06-13 | $7700.00 | Window Closed / Lapsed |