Patent US2629393A successfully refreshed from Google Patents.
Patent FR668791A successfully refreshed from Google Patents.
FR668791A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Apparatus indicating the ratio of two variables
Assignee: Jean-Benoit-Sylvain Palme
•
Filing: 1928-05-16
•
Granted: 1929-11-06
•
Expires: 1948-05-16
Abstract
No abstract record available.
Inventors
- 👤 Jean-Benoit-Sylvain Palme
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 06:37
CPC Classifications
G; G01; G01D; G01D1/00; G01D1/04
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.