Patent US3494392A successfully refreshed from Google Patents.
US3494392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain saw
Assignee: EUROCLEAN CANADA Inc
•
Filing: 1965-09-13
•
Granted: 1970-02-10
•
Expires: 1985-09-13
Abstract
No abstract record available.
Inventors
- 👤 Finn T Irgens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:44
CPC Classifications
B; B27; B27B; B27B33/00; B27B33/14; B27B33/148; Y; Y10; Y10T; Y10T83/00; Y10T83/909; Y10T83/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123411A
Cited
US709149A
Cited
US1271239A
Cited
US2017457A
Cited
US2246225A
Cited
US2387064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |