US2606540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system for internalcombustion engines
Assignee: Individual
•
Filing: 1949-10-06
•
Granted: 1952-08-12
•
Expires: 1969-10-06
Abstract
No abstract record available.
Inventors
- 👤 Tchaoussoglou Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:36
CPC Classifications
F; F01; F01P; F01P9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE301615C
Cited
US648914A
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DE307156C
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US1389395A
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US1376086A
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US1523199A
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US1890745A
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US2210049A
Cited
US2240674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |