JPS508039B1
Process of making a highly dispersed mixture of carbon black and silicic acid
Abstract
This record has no abstract on file.
Term
Term ended
Expired 25 September 1990, 36 years ago.
- Priority
- Filed
- Granted
- Expired
- Today
6 members in 4 offices
Priority claims1
| Document | Office | Kind | Date |
|---|---|---|---|
| 1948443 | Germany | A |
Members6
| Document | Office | Kind | |
|---|---|---|---|
| DE1948443A1 | Germany | A1 | |
| FR2062679A5 | France | A5 | |
| US3660132A | United States of America | A | |
| JPS508039B1This record | Japan | B1 | |
| DE1948443B2 | Germany | B2 | |
| DE1948443C3 | Germany | C3 |
Numbers
- Application
- 8401770
Classification
- CPC, 4
- C09C1/44
- C08K3/04
- C08K3/36
- C01P2004/88
- IPC, 7
- C01B31 02
- C01B33 16
- C08K3 04
- C08K3 36
- C09C1 00
- C09C1 44
- C09C1 48