Patent US2693616A successfully refreshed from Google Patents.
US2693616A
Expired / Lapsed
US
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Door checking and holding device
Assignee: Ford Motor Co
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Filing: 1951-11-06
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Granted: 1954-11-09
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Expires: 1971-11-06
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Cromwell
- 👤 Stephen J Galla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:25
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/12; E05C17/20; E05C17/203; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0876; Y10T292/0878; Y10T292/0879; Y10T292/28; Y10T292/301
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |