Patent FR656569A successfully refreshed from Google Patents.
FR656569A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Method of manufacturing protective layers against the halo
Assignee: IG Farbenindustrie AG
•
Filing: 1928-06-27
•
Granted: 1929-05-10
•
Expires: 1948-06-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 22:10
CPC Classifications
F; F16; F16G; F16G13/00; F16G13/12; F16G13/14; G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/8255
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.