US3485324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston cooling system
Assignee: Deutz Allis Corp
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Filing: 1967-11-07
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Granted: 1969-12-23
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Expires: 1987-11-07
Abstract
No abstract record available.
Inventors
- 👤 Leo L Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:11
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/16; F02F3/20; F02F3/22; F01; F01M; F01M1/00; F01M1/08; F01P; F01P3/00; F01P3/06; F01P3/08
Claims Analysis
Total Claims: 0
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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) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |