FR457126A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to water pump valves
Assignee: Individual
•
Filing: 1913-04-25
•
Granted: 1913-09-12
•
Expires: 1933-04-25
Abstract
No abstract record available.
Inventors
- 👤 John Robinson Butler
- 👤 Jacob Fritz
- 👤 David Alen Attebery
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-07 23:50
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1037; F04B53/104
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.