Patent FR1005585A successfully refreshed from Google Patents.
FR1005585A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for automatically obtaining small displacements, in particular with a view to the fabrication of a diffraction grating
Assignee: Pierre-Andre Drouin
•
Filing: 1947-08-14
•
Granted: 1952-04-11
•
Expires: 1967-08-14
Abstract
No abstract record available.
Inventors
- 👤 Pierre-Andre Drouin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 22:08
CPC Classifications
G; G01; G01B; G01B7/00
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.