Patent US2693206A successfully refreshed from Google Patents.
US2693206A
Expired / Lapsed
US
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Chain saw with outboard end idler pulley
Assignee: Individual
•
Filing: 1952-08-08
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Granted: 1954-11-02
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Expires: 1972-08-08
Abstract
No abstract record available.
Inventors
- 👤 Walter J Anttonen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:47
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/02; B27B17/04; B27B17/12
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) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |