Patent US2990112A successfully refreshed from Google Patents.
US2990112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating means
Assignee: Motors Liquidation Co
•
Filing: 1959-05-28
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Granted: 1961-06-27
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Expires: 1979-05-28
Abstract
No abstract record available.
Inventors
- 👤 Irving M Levy
- 👤 Jack W Savage
- 👤 Raymond A Flora
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:26
CPC Classifications
F; F04; F04D; F04D25/00; F04D25/02; F04D25/06; F04D25/0606; F04D25/0613; F04D25/062; F04D25/0626; F04D25/064; F04D25/0646
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |