US2883161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Systems for modifying heat content of air introduced into vehicles
Assignee: Motors Liquidation Co
•
Filing: 1955-08-08
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Granted: 1959-04-21
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Expires: 1975-08-08
Abstract
No abstract record available.
Inventors
- 👤 Henry W Boylan
- 👤 Harry C Doane
- 👤 Lloyd E Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:33
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00007; B60H1/00021; B60H1/00035; B60H1/0005; B60H2001/0015; B60H2001/00157; B60H2001/00185; B60H2001/00192; B60H1/00207; B60H2001/00214; B60H3/00; B60H3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735657A
Cited
US1063769A
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US1281974A
Cited
US2072744A
Cited
US2264848A
Cited
US2327664A
Cited
US2789794A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |