Patent US4606163A successfully refreshed from Google Patents.
Patent FR843073A successfully refreshed from Google Patents.
FR843073A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for the preparation of sulfinic acid derivatives
Assignee: Bayer Pharma AG
•
Filing: 1938-03-28
•
Granted: 1939-06-26
•
Expires: 1958-03-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 11:01
CPC Classifications
C; C07; C07C; C07C313/00; C07C313/02; C07C313/06
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.