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US2928440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain saw blade
Assignee: Individual
•
Filing: 1957-05-10
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Granted: 1960-03-15
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Expires: 1977-05-10
Abstract
No abstract record available.
Inventors
- 👤 Carl I Fors
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:52
CPC Classifications
B; B27; B27B; B27B33/00; B27B33/14; B27B33/142; B27B33/141; Y; Y10; Y10T; Y10T83/00; Y10T83/909; Y10T83/925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2534591A
Cited
US2658537A
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US2558678A
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US2736352A
Cited
US2747623A
Cited
US2713276A
Cited
AT185564B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |