US2557004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system for automobiles
Assignee: Individual
•
Filing: 1948-10-08
•
Granted: 1951-06-12
•
Expires: 1968-10-08
Abstract
No abstract record available.
Inventors
- 👤 George R Lepper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:28
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32; B60H1/3235
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2202954A
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US2186562A
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US2248983A
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US2318222A
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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) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |