US3404749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain saw muffler
Assignee: Cooper Industries LLC
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Filing: 1967-03-27
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Granted: 1968-10-08
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Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 Ronald M Miller
- 👤 Richard A Rudnicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:00
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; B; B27; B27B; B27B17/00; F01N1/00; F01N1/08; F01N1/083; F01N13/1833; F01N13/1888; F01N13/1894; F01N2450/00; F01N2450/22; F01N2450/24; F01N2470/00; F01N2470/10; F01N2470/18; F01N2470/20; F01N2490/00; F01N2490/02; F01N2490/08; F01N2590/00; F01N2590/06
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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |