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Patent US2491354A successfully refreshed from Google Patents.
US2491354A
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Assignee: Individual
•
Filing: 1945-12-29
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Granted: 1949-12-13
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Expires: 1965-12-29
Abstract
No abstract record available.
Inventors
- 👤 Russel D Acton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:38
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/06; B62D49/065; A; A01; A01D; A01D41/00; A01D41/04; A01D67/00; Y; Y10; Y10S; Y10S56/00; Y10S56/09; Y10S56/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |