Patent US2738718A successfully refreshed from Google Patents.
US2738718A
Expired / Lapsed
US
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Heating, ventilating, and windshield defrosting system
Assignee: Motors Liquidation Co
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Filing: 1952-01-02
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Granted: 1956-03-20
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Expires: 1972-01-02
Abstract
No abstract record available.
Inventors
- 👤 Edward F Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:38
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00007; B60H1/00021; B60H1/00035; B60H1/00042; B60S; B60S1/00; B60S1/02; B60S1/54; B60H2001/00078; B60H2001/00085; B60H2001/0015; B60H2001/00157; B60H1/00207; B60H2001/00214
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |