Patent US2540079A successfully refreshed from Google Patents.
US2540079A
Expired / Lapsed
US
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Arrow construction
Assignee: Individual
•
Filing: 1946-12-30
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Granted: 1951-02-06
•
Expires: 1966-12-30
Abstract
No abstract record available.
Inventors
- 👤 Archie R Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:23
CPC Classifications
F; F42; F42B; F42B6/00; F42B6/02; F42B6/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1162200A
Cited
US2009759A
Cited
US2031044A
Cited
US2137014A
Cited
US2373216A
Cited
US2467838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |