Patent FR2170141B1 successfully refreshed from Google Patents.
FR2170141B1
Expired / Lapsed
FR
⏱️ 0.0 years remaining
FR2170141B1 - - Google Patents
Assignee: AT&T Inc
•
Filing: 1973-02-01
•
Granted: 1975-08-22
•
Expires: 1993-02-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 10:36
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/12004; G02B6/24; G02B6/26; G02B6/34; G02F; G02F1/00; G02F1/01; G02F1/09; G02F1/095; H; H01; H01F; H01F10/00; H01F10/08; H01F10/10; H01F10/18; H01F10/20; H01F10/24; H01F10/245; H01S; H01S3/00; H01S3/05; H01S3/06; H01S3/063; H01S3/0632
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.