Patent JPS5891868A successfully refreshed from Google Patents.
JPS5891868A
Expired / Lapsed
JP
⏱️ 0.0 years remaining
Production of acrylonitrile hollow fiber reverse osmosis membrane
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1981-11-24
•
Granted: —
•
Expires: 2001-11-24
Abstract
Abstract Translated from Japanese (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。 (57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Inventors
- 👤 竹上 信介
- 👤 浜田 一人
- 👤 下村 隆敏
- 👤 学 平川
Bibliographic Details
Application Number
—
Jurisdiction
JP
Data Source
google_patents
Last Synchronized
2026-11-08 06:11
CPC Classifications
B; B01; B01D; B01D71/00; B01D71/06; B01D71/40; B01D71/42
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.