US3475804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine piston with pre-stressed insert
Assignee: International Motors LLC
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Filing: 1968-04-19
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Granted: 1969-11-04
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Expires: 1988-04-19
Abstract
No abstract record available.
Inventors
- 👤 Eugene J Geiger
- 👤 Dale H Breen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:13
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/02; F02F3/04; F02F3/08; F02B; F02B23/00; F02B23/02; F02B23/06; F02B23/0675; F16; F16J; F16J1/00; F16J1/10; F16J1/14; F02B2275/00; F02B2275/14; F02B23/0603; F02B3/00; F02B3/06; F02F1/00; F02F2001/008; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; F05C2201/04; F05C2201/0433; F05C2201/0448; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49249; Y10T29/49256; Y10T29/49261; Y10T29/49265; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T29/4998; Y10T29/49988; Y10T29/49989
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2473254A
Cited
US3251349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |