FR668678A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements made to laboratory centrifuges
Assignee: Louis Gasselin
•
Filing: 1929-01-30
•
Granted: 1929-11-05
•
Expires: 1949-01-30
Abstract
No abstract record available.
Inventors
- 👤 Louis Gasselin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 16:09
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0414; B04B5/0421
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.