US2965361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchangers
Assignee: Continental Aviation and Engineering Corp
•
Filing: 1957-08-01
•
Granted: 1960-12-20
•
Expires: 1977-08-01
Abstract
No abstract record available.
Inventors
- 👤 Frank L Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:28
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/04; F28D19/041; F28D19/047; F28D19/048; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/013; Y10S165/016; Y10S165/02; Y10S165/024
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |