Patent US2821216A successfully refreshed from Google Patents.
US2821216A
Expired / Lapsed
US
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Portable chain saw attachment for clearing fire lanes or the like
Assignee: Individual
•
Filing: 1956-11-28
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Granted: 1958-01-28
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Expires: 1976-11-28
Abstract
No abstract record available.
Inventors
- 👤 Raymond M West
- 👤 Robert W Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:04
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/0016; A; A01; A01B; A01B39/00; A01B39/08; A01B39/085; A01D; A01D1/00; A01G; A01G3/00; A01G3/08; Y; Y10; Y10T; Y10T83/00; Y10T83/707; Y10T83/7083
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) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |