US2710186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door operation and control
Assignee: National Pneumatic Co Inc
•
Filing: 1951-11-19
•
Granted: 1955-06-07
•
Expires: 1971-11-19
Abstract
No abstract record available.
Inventors
- 👤 Paul H Maurer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:53
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/50; E05F15/56; E05F15/565; E05F1/00; E05F1/08; E05F1/16; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/404; E05Y2201/41; E05Y2201/422; E05Y2201/43; E05Y2201/448; E05Y2900/00; E05Y2900/50; E05Y2900/51
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2254388A
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US2388182A
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US2504408A
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US2573160A
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US2558867A
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US2606022A
Cited
US2578909A
Cited
US2578894A
Cited
US2586442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |