US2935156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined air filtering and air disinfecting unit mounting
Assignee: Motors Liquidation Co
•
Filing: 1958-01-23
•
Granted: 1960-05-03
•
Expires: 1978-01-23
Abstract
No abstract record available.
Inventors
- 👤 Robert O Scofield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:38
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B03; B03C; B03C3/00; B03C3/02; B03C3/04; B03C3/14; F; F24; F24F; F24F13/00; F24F13/28; B01D2273/00; B01D2273/30; B01D2279/00; B01D2279/50; B01D2279/65
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US618439A
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US2732501A
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US637519A
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US2221351A
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US2628083A
Cited
US2638644A
Cited
US2822476A
Cited
US2855641A
Cited
US2824343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |