US3528319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfectly balanced vibrationless rotation - reciprocation device of crankshaft planetary motion system
Assignee: Shizuoka University
•
Filing: 1969-01-15
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Granted: 1970-09-15
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Expires: 1989-01-15
Abstract
No abstract record available.
Inventors
- 👤 Kenjiro Ishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:38
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/22; F16F15/26; F16F15/264; F16F15/24; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B67/00; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2183
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1871899A
Cited
US3112658A
Cited
US3203274A
Cited
US3402707A
Cited
US3447512A
Cited
US3457804A
Cited
US3463126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |