US2428066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust heat exchanger
Assignee: Garrett Corp
•
Filing: 1942-11-17
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Granted: 1947-09-30
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Expires: 1962-11-17
Abstract
No abstract record available.
Inventors
- 👤 Herbert B Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:22
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00321; B60H1/00335; F; F28; F28D; F28D9/00; F28D9/0012; F28D9/0018; F28F; F28F1/00; F28F1/02; F28F1/06; Y; Y10; Y10S; Y10S165/00; Y10S165/355; Y10S165/356; Y10S165/357; Y10S165/358
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US86373A
Cited
US1261637A
Cited
US1651029A
Cited
US1970824A
Cited
US1998974A
Cited
GB424853A
Cited
US2321110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |