Patent US2759226A successfully refreshed from Google Patents.
US2759226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door for airplane hangars and the like
Assignee: MCKEE DOOR Co
•
Filing: 1952-02-07
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Granted: 1956-08-21
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Expires: 1972-02-07
Abstract
No abstract record available.
Inventors
- 👤 John F Mckee
- 👤 Melvin E Hartzler
- 👤 Robert K Young
- 👤 Carmen L Ramirez
- 👤 Ralph D George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:38
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/40; E05D15/405; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1962475A
Cited
CH162395A
Cited
DE694448C
Cited
GB414978A
Cited
US2388182A
Cited
US2476755A
Cited
US2532456A
Cited
US2580311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |