Patent US1139905A successfully refreshed from Google Patents.
US1139905A
Expired / Lapsed
US
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Door operating and locking device.
Assignee: FRANK M COVERT
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Filing: 1913-01-11
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Granted: 1915-05-18
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Expires: 1933-01-11
Abstract
No abstract record available.
Inventors
- 👤 Hood Pitts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:20
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/632; E05Y; E05Y2400/00; E05Y2400/10; E05Y2400/30; E05Y2400/3013
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) | 1918-05-17 | 1918-11-16 | 1919-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1922-05-17 | 1922-11-16 | 1923-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1926-05-17 | 1926-11-16 | 1927-05-18 | $7700.00 | Window Closed / Lapsed |