US3420295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-exchanger,especially for heating and cooling the lubricant of liquidcooled internal combustion engine
Assignee: Daimler Benz AG
•
Filing: 1966-07-25
•
Granted: 1969-01-07
•
Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Alfred Gotz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:50
CPC Classifications
F; F16; F16N; F16N39/00; F16N39/02; F28; F28D; F28D7/00; F28D7/0041; F28F; F28F13/00; F28F13/06; F28F9/00; F28F9/005; F28F9/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1101969A
Cited
US2517169A
Cited
US2978226A
Cited
US3042379A
Cited
US3205940A
Cited
US3315737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |