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US2659230A
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Coincidental door locking system
Assignee: Individual
•
Filing: 1949-07-07
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Granted: 1953-11-17
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Expires: 1969-07-07
Abstract
No abstract record available.
Inventors
- 👤 Burnie J Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:08
CPC Classifications
E; E05; E05B; E05B77/00; E05B77/46; E05B77/48; Y; Y10; Y10S; Y10S292/00; Y10S292/37; Y10T; Y10T70/00; Y10T70/60; Y10T70/625; Y10T70/65
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1059952A
Cited
US2039873A
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US2001787A
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US2014363A
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US2221181A
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US2234810A
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US2249018A
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US2246781A
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US2329309A
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US2450372A
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US2529421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |