US2646027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aftercooler construction
Assignee: Curtiss Wright Corp
•
Filing: 1951-02-28
•
Granted: 1953-07-21
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Expires: 1971-02-28
Abstract
No abstract record available.
Inventors
- 👤 Ackerman Edward
- 👤 Feo Angelo De
- 👤 Jr William H Francisco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:46
CPC Classifications
F; F02; F02B; F02B29/00; F02B29/04; F02B29/0406; F02B29/0412; F02B29/045; F02B29/0475; F28; F28D; F28D9/00; F28D9/0012; F28D9/0018; F28D9/0062; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1935186A
Cited
US2137399A
Cited
US2350784A
Cited
US2241420A
Cited
US2367223A
Cited
US2423175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |