Patent US4057276A successfully refreshed from Google Patents.
Patent FR804143A successfully refreshed from Google Patents.
FR804143A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Large aperture and wide field lens, for still cameras and cinematography
Assignee: Societe dOptique et de Mecanique de Haute Precision
•
Filing: 1935-07-08
•
Granted: 1936-10-16
•
Expires: 1955-07-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-07 15:54
CPC Classifications
G; G02; G02B; G02B13/00
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.