Patent DE611558C successfully refreshed from Google Patents.
US2837288A
Expired / Lapsed
US
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Automotive heating, ventilating and defrosting system
Assignee: Motors Liquidation Co
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Filing: 1953-12-11
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Granted: 1958-06-03
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Expires: 1973-12-11
Abstract
No abstract record available.
Inventors
- 👤 Webster J Owen
- 👤 Charles F Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:10
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00007; B60H1/00021; B60H1/00064; B60H1/00071; B60H2001/00114; B60H2001/00121; B60H2001/0015; B60H2001/00171; B60H2001/00185; B60H2001/00192
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) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |