US2736237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
broussard
Assignee: —
•
Filing: —
•
Granted: 1956-02-28
•
Expires: 1973-02-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:05
CPC Classifications
F; F41; F41A; F41A1/00; F41A1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1821521A
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US933741A
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US1749137A
Cited
US1723623A
Cited
US2088503A
Cited
US2362075A
Cited
US2469333A
Cited
US2503116A
Cited
US2452147A
Cited
US2433637A
Cited
US2502891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |