US3456387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remotely controlled closures
Assignee: CLYDE A TOLSON
•
Filing: 1967-07-06
•
Granted: 1969-07-22
•
Expires: 1987-07-06
Abstract
No abstract record available.
Inventors
- 👤 Clyde A Tolson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:18
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/70; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/502
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2198488A
Cited
US2527565A
Cited
US2499544A
Cited
US3012156A
Cited
US3198937A
Cited
US3235247A
Cited
US3337992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |