US2992450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding door closer
Assignee: SHELBY SPRING HINGE Co
•
Filing: 1959-01-05
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Granted: 1961-07-18
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Expires: 1979-01-05
Abstract
No abstract record available.
Inventors
- 👤 Francis H Pittenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:38
CPC Classifications
E; E05; E05F; E05F1/00; E05F1/08; E05F1/16; E05D; E05D13/00; E05D13/10; E05D13/12; E05D13/1276; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/47; E05Y2201/482; 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) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |