Patent US2047401A successfully refreshed from Google Patents.
US2047401A
Expired / Lapsed
US
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Door latch and opening mechanism
Assignee: Stewart Warner Corp
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Filing: 1933-10-31
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Granted: 1936-07-14
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Expires: 1953-10-31
Abstract
No abstract record available.
Inventors
- 👤 John B Whitted
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:53
CPC Classifications
E; E05; E05B; E05B63/00; E05B63/24; E05B63/244; Y; Y10; Y10S; Y10S292/00; Y10S292/37; Y10S292/72; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1053; Y10T292/106; Y10T292/68; Y10T292/688; Y10T292/691
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) | 1939-07-14 | 1940-01-13 | 1940-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-07-14 | 1944-01-13 | 1944-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-07-14 | 1948-01-13 | 1948-07-14 | $7700.00 | Window Closed / Lapsed |