US2782008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchangers for fluids
Assignee: Motors Liquidation Co
•
Filing: 1953-12-09
•
Granted: 1957-02-19
•
Expires: 1973-12-09
Abstract
No abstract record available.
Inventors
- 👤 Robert F Caughill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:40
CPC Classifications
F; F28; F28F; F28F3/00; F28F3/12; F28D; F28D9/00; F28D9/0031; F28D9/0037; F01; F01M; F01M11/00; F01M11/0004; F01M2011/0025; Y; Y10; Y10S; Y10S165/00; Y10S165/916
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US791876A
Cited
US1876648A
Cited
US1976772A
Cited
US1966133A
Cited
US2063782A
Cited
US2222721A
Cited
US2576213A
Cited
US2435041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |