US2955713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter element sealing construction
Assignee: Motors Liquidation Co
•
Filing: 1954-06-30
•
Granted: 1960-10-11
•
Expires: 1974-06-30
Abstract
No abstract record available.
Inventors
- 👤 Gerald W Colby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:56
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; B01D29/213; B01D2201/00; B01D2201/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732077A
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US1557125A
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US2131509A
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US2183877A
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US2201418A
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US2294262A
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US2468862A
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US2550070A
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US2578020A
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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) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |