Patent US1967151A successfully refreshed from Google Patents.
Patent FR509447A successfully refreshed from Google Patents.
FR509447A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to gyroscopic devices used for vertical indication
Assignee: Individual
•
Filing: 1920-02-05
•
Granted: 1920-11-09
•
Expires: 1940-02-05
Abstract
No abstract record available.
Inventors
- 👤 Marie-Emile-Alfred Baule
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-26 12:08
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; H02K7/16; F; F16; F16C; F16C23/00; F16C23/02; F16C23/04
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.