US3353341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air filters for internal combustion engines
Assignee: Tecalemit Engineering Ltd
•
Filing: 1966-03-29
•
Granted: 1967-11-21
•
Expires: 1986-03-29
Abstract
No abstract record available.
Inventors
- 👤 Stripp Peter William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:47
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/02; F02M35/0201; F02M35/0202; F02M35/0203; F02M35/024; F02M35/14
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |