Patent FR42814E successfully refreshed from Google Patents.
FR42814E
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Lock washer for lag screws, nuts, screws, studs and other similar applications
Assignee: Charles Chevalley
•
Filing: 1932-06-24
•
Granted: 1933-11-04
•
Expires: 1952-06-24
Abstract
No abstract record available.
Inventors
- 👤 Charles Chevalley
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 23:46
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/24
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.