US2452501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Garage door operation
Assignee: Individual
•
Filing: 1946-04-29
•
Granted: 1948-10-26
•
Expires: 1966-04-29
Abstract
No abstract record available.
Inventors
- 👤 Albert J Swanson
- 👤 John R Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:39
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/611; E05F15/616; E05F15/619; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/71; E05Y2201/722; E05Y2900/00; E05Y2900/10; E05Y2900/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US563779A
Cited
US1194482A
Cited
US1294399A
Cited
US1941454A
Cited
US1940971A
Cited
US2053172A
Cited
US2396610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |