Patent US4096346A successfully refreshed from Google Patents.
Patent DE660602C successfully refreshed from Google Patents.
DE660602C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Film switching device for roll film cameras
Assignee: Voigtlander AG
•
Filing: 1936-03-08
•
Granted: 1938-05-30
•
Expires: 1956-03-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-28 07:00
CPC Classifications
G; G03; G03B; G03B19/00; G03B19/02; G03B19/04
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.