FR1074658A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Speed variator improved by pulleys for trapezoidal belts
Assignee: Roger Grapton
•
Filing: 1952-11-26
•
Granted: 1954-10-07
•
Expires: 1972-11-26
Abstract
No abstract record available.
Inventors
- 👤 Roger Grapton
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 00:04
CPC Classifications
F; F16; F16H; F16H9/00; F16H9/02; F16H9/04; F16H9/12; F16H9/14; F16H55/00; F16H55/32; F16H55/52; F16H55/56; F16H9/16; F16H2009/163
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.