US3478611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed drive assembly
Assignee: Individual
•
Filing: 1968-07-15
•
Granted: 1969-11-18
•
Expires: 1988-07-15
Abstract
No abstract record available.
Inventors
- 👤 Claude Venne
- 👤 Robert Forest
- 👤 Serge Perreault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:30
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/52; F16H55/56; F16H61/00; F16H61/66; F16H61/662; F16H61/66231; F16H61/6624
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |