FR778928A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to the valves
Assignee: COPES REGULATORS Ltd
•
Filing: 1934-09-26
•
Granted: 1935-03-26
•
Expires: 1954-09-26
Abstract
No abstract record available.
Inventors
- 👤 Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 17:07
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/22; F16K3/24; F16K3/26
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.