US3469653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muffler
Assignee: Meritor Inc
•
Filing: 1967-02-13
•
Granted: 1969-09-30
•
Expires: 1987-02-13
Abstract
No abstract record available.
Inventors
- 👤 Robert L Vautaw
- 👤 Richard C Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:55
CPC Classifications
F; F01; F01N; F01N1/00; F01N1/08; F01N1/084; F01N1/02; F01N2490/00; F01N2490/15; F01N2490/155; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49398
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2070543A
Cited
US2337299A
Cited
US2343152A
Cited
US2652128A
Cited
US2934161A
Cited
US3036654A
Cited
US3263772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |