Number | Date | Country | Kind |
---|---|---|---|
3717037 | May 1987 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3282693 | Sagura et al. | Nov 1966 | |
3427161 | Laridon | Feb 1969 | |
3449367 | Teh-lin Chang | Dec 1970 | |
3552973 | Fishman | Jan 1971 | |
3574622 | Jenkins et al. | Feb 1974 | |
3615568 | Jenkins | Oct 1971 | |
3699026 | Jenkins et al. | Oct 1972 | |
3883351 | Lewis | May 1975 | |
3899338 | Lewis | Aug 1975 | |
4065315 | Yamazaki et al. | Dec 1977 | |
4154463 | Burri | May 1979 | |
4162274 | Rosenkranz | Jul 1979 | |
4228232 | Rousseau | Oct 1980 | |
4304923 | Rousseau | Dec 1981 | |
4598036 | Iwasaki et al. | Jul 1986 |
Number | Date | Country |
---|---|---|
870006 | May 1971 | CAX |
0019219 | Mar 1972 | EPX |
0005379 | Aug 1975 | EPX |
8001846 | Apr 1971 | IBX |
1489425 | Jun 1976 | GBX |
1030887 | Jun 1977 | GBX |
2083832 | Mar 1981 | GBX |
Entry |
---|
R. A. Abramovitch & E. M. Smith, "Pyridine and Its Derivatives", vol. 14, Part 2, p. 1 (1974). |
Derwent Publication 85-290724/47, (Patent Abstract of DE 3,517,173). |