US2595291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door controller
Assignee: Individual
•
Filing: 1947-01-30
•
Granted: 1952-05-06
•
Expires: 1967-01-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas B Ramsey
- 👤 Eldon S Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:51
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/40; E05F15/42; E05F15/44; E05F15/60; E05F15/603; E05F15/632; E05F15/635; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/43; E05Y2201/434; E05Y2201/60; E05Y2201/622; E05Y2201/71; E05Y2201/722; E05Y2400/00; E05Y2400/10; E05Y2400/20; E05Y2400/65; E05Y2400/656; E05Y2400/658; E05Y2600/00; E05Y2600/40; E05Y2600/46; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US704398A
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US851891A
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US1022001A
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US1041642A
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US1496154A
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US1396757A
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US1705406A
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US1735153A
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US1793716A
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US1745990A
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US1942253A
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US1932198A
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US1952681A
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US2425312A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |