US2881860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cleaner and silencer
Assignee: Individual
•
Filing: 1955-04-11
•
Granted: 1959-04-14
•
Expires: 1975-04-11
Abstract
No abstract record available.
Inventors
- 👤 William A Ternes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:28
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/10006; F02M35/10013; F02M35/14; F02M35/16; F02M35/161; Y; Y10; Y10S; Y10S55/00; Y10S55/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US752386A
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US1873252A
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US1855038A
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US1859644A
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GB391180A
Cited
US1934463A
Cited
US1953785A
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US2037884A
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US2299157A
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US2701024A
Cited
US2564814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |