DE890722C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Optical system for periscopes
Assignee: Optische Werke CA Steinheil Soehne GmbH
•
Filing: —
•
Granted: 1953-08-13
•
Expires: 1970-08-13
Abstract
No abstract record available.
Inventors
- 👤 Heerbrugg St. Gallen Ludwig Bertele (Schweiz)
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-29 11:36
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/02; G02B23/08
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.