US2911210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic door operators
Assignee: Stanley Works
•
Filing: 1955-11-25
•
Granted: 1959-11-03
•
Expires: 1975-11-25
Abstract
No abstract record available.
Inventors
- 👤 Harold W Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:35
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/04; E05F3/06; E05F15/00; E05F15/50; E05F15/53; E05Y; E05Y2201/00; E05Y2201/10; E05Y2201/11; E05Y2800/00; E05Y2800/10; E05Y2800/12; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1542209A
Cited
US1524702A
Cited
US2606022A
Cited
US2676796A
Cited
US2810571A
Cited
US2739808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |