US2747863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door opening device
Assignee: J P S PRODUCTS Inc
•
Filing: 1954-11-24
•
Granted: 1956-05-29
•
Expires: 1974-11-24
Abstract
No abstract record available.
Inventors
- 👤 Perry I Huppert
- 👤 Huppert Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:14
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/665; E05F15/668; E05F15/67; E05F15/681; E05F15/684; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/43; E05Y2201/434; E05Y2201/60; E05Y2201/604; E05Y2201/622; E05Y2201/64; E05Y2201/642; E05Y2201/644; E05Y2201/656; E05Y2201/708; E05Y2600/00; E05Y2600/40; E05Y2600/46; E05Y2900/00; E05Y2900/10; E05Y2900/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1862860A
Cited
US1817909A
Cited
US1745990A
Cited
US2401082A
Cited
US2506621A
Cited
US2676294A
Cited
US2628090A
Cited
US2661450A
Cited
US2672582A
Cited
US2703236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |