FR797523A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements relating to cinematographic screens
Assignee: Emile Alain Paul Linglin
•
Filing: 1935-01-30
•
Granted: 1936-04-28
•
Expires: 1955-01-30
Abstract
No abstract record available.
Inventors
- 👤 Emile Alain Paul Linglin
- 👤 Linglin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-29 11:00
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/562
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.