FR447143A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements in the manufacture of lock washers for nuts
Assignee: JOHN MC IVOR LAMBIE
•
Filing: 1912-08-12
•
Granted: 1912-12-23
•
Expires: 1932-08-12
Abstract
No abstract record available.
Inventors
- 👤 Herbert Alexander Harvey
- 👤 John Mc Ivor Lambie
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-25 19:55
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/16; B21D53/20
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.