Patent US766877A successfully refreshed from Google Patents.
Patent FR49913E successfully refreshed from Google Patents.
FR49913E
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for the continuous detection of the variation of opacity or color of a liquid
Assignee: Thales SA
•
Filing: 1938-04-30
•
Granted: 1939-09-22
•
Expires: 1958-04-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-04 10:32
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/10; G01N35/1095; G01N35/1097
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.