Patent US2464952A successfully refreshed from Google Patents.
US2464952A
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US
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Assignee: Individual
•
Filing: 1946-01-07
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Granted: 1949-03-22
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Expires: 1966-01-07
Abstract
No abstract record available.
Inventors
- 👤 Frank D Warburton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:30
CPC Classifications
B; B62; B62K; B62K9/00; B62K9/02; B62M; B62M1/00; B62M1/14; B62M1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US355324A
Cited
US433202A
Cited
US1309855A
Cited
US1887991A
Cited
US722524A
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US1276168A
Cited
US1443904A
Cited
US1767047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |