JPS53142248A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Production of plastic clad fiber for optical transmission
Assignee: Sumitomo Electric Industries Ltd
•
Filing: 1977-05-17
•
Granted: —
•
Expires: 1997-05-17
Abstract
Abstract PURPOSE:To prevent the production of peeling at the interface of core and specific clad and the production of microbending and make possible averting transmission loss by performing heat treatment at a temperature above room temperature and below the melting point of protecting vovering layer.
Inventors
- 👤 Toru Yamanishi
- 👤 Tetsuharu Ono
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-04 23:44
CPC Classifications
—
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.