US2591693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic door opener
Assignee: Individual
•
Filing: 1948-11-20
•
Granted: 1952-04-08
•
Expires: 1968-11-20
Abstract
No abstract record available.
Inventors
- 👤 John J Gatesy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:24
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/611; E05F15/63; E05Y; E05Y2201/00; E05Y2201/20; E05Y2201/214; E05Y2201/216; E05Y2201/23; E05Y2201/246; E05Y2201/40; E05Y2201/46; E05Y2201/462; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1249110A
Cited
US1684704A
Cited
US1768714A
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US1877572A
Cited
GB353776A
Cited
US2024300A
Cited
GB552187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |