Patent US3950264A successfully refreshed from Google Patents.
Patent US3068709A successfully refreshed from Google Patents.
US3068709A
Expired / Lapsed
US
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Roller and wrist pin construction for rotary engines
Assignee: Individual
•
Filing: 1960-01-15
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Granted: 1962-12-18
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Expires: 1980-01-15
Abstract
No abstract record available.
Inventors
- 👤 Axel L Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:30
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/04; F01B3/0032; F16; F16H; F16H25/00; F16H25/08; F16H25/12; F02; F02B; F02B57/00; F02B75/00; F02B75/26; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/18312; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |