Patent US2589478A successfully refreshed from Google Patents.
US2589478A
Expired / Lapsed
US
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Garage door operator
Assignee: UNITED STATES MOTORS Corp
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Filing: 1946-12-07
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Granted: 1952-03-18
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Expires: 1966-12-07
Abstract
No abstract record available.
Inventors
- 👤 Guy A Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:40
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/70; E05F15/73; E05F15/76; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2240891A
Cited
US898766A
Cited
US1951409A
Cited
US1935017A
Cited
US2118930A
Cited
US2186311A
Cited
US2435440A
Cited
US2412871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |