US2511084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-exchanger core
Assignee: Young Radiator Co
•
Filing: 1947-11-07
•
Granted: 1950-06-13
•
Expires: 1967-11-07
Abstract
No abstract record available.
Inventors
- 👤 Joe C Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:50
CPC Classifications
F; F28; F28D; F28D9/00; F28D9/0031; F28D9/0043; F28F; F28F2250/00; F28F2250/10; F28F2250/104; Y; Y10; Y10S; Y10S165/00; Y10S165/916
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US753031A
Cited
GB113651A
Cited
US1690501A
Cited
GB464165A
Cited
US2222721A
Cited
CH215204A
Cited
US2354865A
Cited
US2346178A
Cited
US2360123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |