US3533301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission shifting mechanism including locking means for preventing over-shifting
Assignee: Dr Ing HCF Porsche AG
•
Filing: 1969-03-28
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Granted: 1970-10-13
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Expires: 1989-03-28
Abstract
No abstract record available.
Inventors
- 👤 Otto Hausinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:21
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/18; F16H59/00; F16H59/02; F16H59/04; F16H59/042; F16H61/24; F16H63/00; F16H63/02; F16H63/08; F16H63/20; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1463328A
Cited
US1946750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |