US2497365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Change holder
Assignee: Individual
•
Filing: 1947-04-04
•
Granted: 1950-02-14
•
Expires: 1967-04-04
Abstract
No abstract record available.
Inventors
- 👤 Welburn T Mcmurtry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:32
CPC Classifications
G; G07; G07D; G07D9/00; G07D9/002; B; B60; B60R; B60R7/00; B60R7/08; B60R7/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1691781A
Cited
US1787222A
Cited
US2083117A
Cited
US2098420A
Cited
US2189323A
Cited
US2344339A
Cited
US2305332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |