Patent DE1191980B successfully refreshed from Google Patents.
DE1191980B
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Refractive optical element
Assignee: Siemens Reiniger Werke AG
•
Filing: 1963-10-04
•
Granted: —
•
Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
- 👤 Dr Rer Nat Wilhelm Stuermer
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 16:21
CPC Classifications
G; G02; G02B; G02B3/00; G02B3/0087
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US592429A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.