US2936855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pleated filter and mechanism for forming same
Assignee: Motors Liquidation Co
•
Filing: 1957-10-23
•
Granted: 1960-05-17
•
Expires: 1977-10-23
Abstract
No abstract record available.
Inventors
- 👤 Lloyd G Allen
- 👤 Donald A Mcmillan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:50
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/02; F02M35/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR745466A
Cited
US1967726A
Cited
FR817369A
Cited
US2290608A
Cited
CH295379A
Cited
FR1111568A
Cited
US2771156A
Cited
US2824622A
Cited
US2836302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |