US2657892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting device for door closers
Assignee: Individual
•
Filing: 1948-04-20
•
Granted: 1953-11-03
•
Expires: 1968-04-20
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Hoernel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:06
CPC Classifications
E; E05; E05F; E05F3/00; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US677545A
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US1030090A
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US1155383A
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US1380518A
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US1591082A
Cited
US1671614A
Cited
GB242433A
Cited
US1897091A
Cited
US2027101A
Cited
US2055285A
Cited
US2416316A
Cited
US2441278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |