Number | Date | Country | Kind |
---|---|---|---|
55-143591 | Oct 1980 | JPX |
This application is a continuation, of application Ser. No. 311,600, filed Oct. 15, 1981, now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
1820208 | Bauer | Oct 1931 | |
2183357 | Ritchie et al. | Dec 1939 | |
2859240 | Holmen | Nov 1958 | |
3022336 | Sennewald et al. | Feb 1962 | |
3022337 | Enk et al. | Feb 1962 | |
3022338 | Enk et al. | Feb 1962 | |
3644497 | Mesich | Feb 1972 | |
4018816 | Onoda et al. | Apr 1977 | |
4161609 | Cramer | Jul 1979 |
Entry |
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Kirk-Othmer, Encyclopedia of Chemical Technology, 2nd Ed. Interscience, Publ., vol. 2, (1964), at p. 69 and vol. 8, (1965), at p. 339. |
Degering, Ed. F., An Outline of Organic Nitrogen Compounds, (1950), Univ. Lithoprinters, Ypsilanti, Mich., pp. 409-410. |
Nakayama, Yukio et al., Chemical Abstracts, vol. 72, (1970), #100,060g, (Abstract of Japan, 70-04,971). |
Number | Date | Country | |
---|---|---|---|
Parent | 311600 | Oct 1981 |