Patent US3312206A successfully refreshed from Google Patents.
US3312206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating engines
Assignee: Individual
•
Filing: 1964-12-09
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Granted: 1967-04-04
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Expires: 1984-12-09
Abstract
No abstract record available.
Inventors
- 👤 Radovic Dusan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:53
CPC Classifications
F; F02; F02B; F02B41/00; F02B41/02; F02B41/04; F01; F01B; F01B7/00; F01B7/02; F02B75/00; F02B75/28; F02B75/02; F02B2075/022; F02B2075/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1309891A
Cited
US1848597A
Cited
US1135942A
Cited
GB102852A
Cited
US1284190A
Cited
DE562678C
Cited
US2194022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |