Patent US2473281A successfully refreshed from Google Patents.
US2473281A
Expired / Lapsed
US
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Ventilating and heating apparatus for vehicles
Assignee: Eaton Corp
•
Filing: 1945-03-15
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Granted: 1949-06-14
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Expires: 1965-03-15
Abstract
No abstract record available.
Inventors
- 👤 Howard J Findley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:10
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00007; B60H1/00021; B60H1/00035; B60H1/00042; B60H1/02; B60H1/04; B60H1/06; B60H2001/00078; B60H2001/00085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB229012A
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US2006840A
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US1833324A
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US2079859A
Cited
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Cited
US2019476A
Cited
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Cited
US2101627A
Cited
US2255420A
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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) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |