FR519700A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Auxiliary liquid rotary fan, particularly applicable as an automatic priming device for rotary pumps
Assignee: WEISE SOHNE
•
Filing: 1920-07-07
•
Granted: 1921-06-14
•
Expires: 1940-07-07
Abstract
No abstract record available.
Inventors
- 👤 Soehne Weise
- 👤 Franz Lawaczeck
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-22 21:30
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/04; F04D9/041; F04D17/00; F04D17/08; F04D17/18
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.