US2486779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stall warning indicator
Assignee: United States Department of Commerce
•
Filing: 1943-11-22
•
Granted: 1949-11-01
•
Expires: 1963-11-22
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Fairbanks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:29
CPC Classifications
B; B64; B64D; B64D43/00; B64D43/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1760740A
Cited
GB354381A
Cited
US2110730A
Cited
US2193077A
Cited
US2373089A
Cited
US2287497A
Cited
US2337753A
Cited
US2328384A
Cited
US2280494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |