US2571256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerant cooled intercooler
Assignee: RTX Corp
•
Filing: 1946-09-06
•
Granted: 1951-10-16
•
Expires: 1966-09-06
Abstract
No abstract record available.
Inventors
- 👤 Alexander H King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:52
CPC Classifications
F; F02; F02B; F02B29/00; F02B29/04; F02B29/0406; F02B29/0437; F02B29/0443; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1949812A
Cited
US1913273A
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US2264848A
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US2318834A
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US2353966A
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US2385033A
Cited
US2346463A
Cited
US2366365A
Cited
US2398655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |