FR81513E
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for manufacturing optical elements and in particular ophthalmic lenses made of plastics
Assignee: Lentilles Ophtalmiques Rationnelles
•
Filing: 1962-03-13
•
Granted: 1963-10-04
•
Expires: 1982-03-13
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 11:45
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00009; B29D11/0048; B29D11/00528; B29C; B29C33/00; B29C33/0038; B29D11/00413; B29L; B29L2031/00; B29L2031/76; B29L2031/7602
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.