DE943739C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Membrane for pumps, valves or switchgear and methods for operating such devices
Assignee: Individual
•
Filing: 1953-10-28
•
Granted: 1956-06-01
•
Expires: 1973-10-28
Abstract
No abstract record available.
Inventors
- 👤 Josef Emmerich
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 04:04
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/0009; F04B43/0081; F04B43/009
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.