US2637550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overhead door actuator
Assignee: MCKEE DOOR Co
•
Filing: 1947-11-10
•
Granted: 1953-05-05
•
Expires: 1967-11-10
Abstract
No abstract record available.
Inventors
- 👤 Ritter Bert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:25
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05F15/668; E05F15/673; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/106; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19949; Y10T74/19953
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1047674A
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US1181971A
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US1184849A
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US1231643A
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US1508827A
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US1627331A
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US1962475A
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US2062593A
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US2204638A
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US2335336A
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US2408132A
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US2540538A
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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) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |