FR722180A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Automatic pressure reducing device for liquid or gaseous fluids
Assignee: Jules-Louis Massy
•
Filing: 1931-08-28
•
Granted: 1932-03-14
•
Expires: 1951-08-28
Abstract
No abstract record available.
Inventors
- 👤 Jules-Louis Massy
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 19:33
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0655
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.