Patent DE693243C successfully refreshed from Google Patents.
DE693243C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Diaphragm compressor or pump
Assignee: Siemens Schuckertwerke AG
•
Filing: 1938-07-24
•
Granted: 1940-07-04
•
Expires: 1958-07-24
Abstract
No abstract record available.
Inventors
- 👤 Franz Semsch
- 👤 Dipl-Ing Wilhelm Wirth
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-25 14:31
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0054; F04B45/00; F04B45/02
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.