DE331815C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for the mechanical formation of the film loops necessary for cinematographs
Assignee: Individual
•
Filing: 1920-01-03
•
Granted: 1921-01-13
•
Expires: 1940-01-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-27 09:08
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/56
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.