US3009191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door closer
Assignee: SHELBY SPRING HINGE Co
•
Filing: 1958-03-06
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Granted: 1961-11-21
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Expires: 1978-03-06
Abstract
No abstract record available.
Inventors
- 👤 Francis H Pittenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:33
CPC Classifications
E; E05; E05F; E05F3/00; E05F3/04; E05F3/10; E05F3/106; E05F3/22; E05F3/225; E05F3/226; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |