US3491806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprocket wheel,especially for motor chain saws
Assignee: Andreas Stihl AG and Co KG
•
Filing: 1966-11-23
•
Granted: 1970-01-27
•
Expires: 1986-11-23
Abstract
No abstract record available.
Inventors
- 👤 Eugen Kaisser
- 👤 Hans Dolata
- 👤 Hans Peter Stihl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:28
CPC Classifications
B; B27; B27B; B27B17/00; B27B17/08; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6572; Y10T83/6576
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3099924A
Cited
US3358523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |