This application is a continuation of application Ser. No. 478,991 filed Mar. 25, 1983, abandoned.
Number | Name | Date | Kind |
---|---|---|---|
468984 | Boeing | Feb 1892 | |
713759 | Goade | Nov 1902 | |
2057887 | Elliott et al. | Oct 1936 | |
2069621 | Patrick | Feb 1937 | |
2233981 | Jewell | Mar 1941 | |
2353602 | Trotter | Jul 1944 | |
2572848 | Fitch | Oct 1951 | |
2715964 | Martin | Aug 1955 | |
2742381 | Weiss et al. | Apr 1956 | |
2758070 | Yurko | Aug 1956 | |
2878935 | Magrath et al. | Mar 1959 | |
2925382 | Kent et al. | Feb 1960 | |
3122594 | Kielback | Feb 1964 | |
3216575 | Stuart | Nov 1965 | |
3232434 | Albersmeyer | Feb 1966 | |
3293174 | Robjons | Dec 1966 | |
3305096 | Schleiss | Feb 1967 | |
3343680 | Rice | Sep 1967 | |
3424674 | Weber | Jan 1969 | |
3446357 | Gomella | May 1969 | |
3459302 | Ross | Aug 1969 | |
3557955 | Hirs et al. | Jan 1971 | |
3635764 | Setser et al. | Jan 1972 | |
3671426 | Orcutt et al. | Jun 1972 | |
3698554 | Oct 1972 | ||
3701423 | Lindstol | Oct 1972 | |
3814245 | Hirs | Jun 1974 | |
3814247 | Hirs | Jun 1974 | |
3846305 | Schreiber et al. | Nov 1974 | |
3948767 | Chapman | Apr 1976 | |
3956128 | Turner | May 1976 | |
4052300 | Mosso | Oct 1977 | |
4062775 | Pielkenrood | Dec 1977 | |
4100070 | White et al. | Jul 1978 | |
4115266 | Oshima | Sep 1978 | |
4125467 | Haddad et al. | Nov 1978 | |
4157959 | Wen et al. | Jun 1979 | |
4198301 | Iwatani et al. | Apr 1980 | |
4290894 | Torok | Sep 1981 | |
4420403 | Tufts | Dec 1983 | |
4427555 | Brown et al. | Jan 1984 | |
4446027 | Simmers | May 1984 |
Number | Date | Country |
---|---|---|
833327 | Apr 1960 | GBX |
1147054 | Apr 1969 | GBX |
1204880 | Sep 1970 | GBX |
1264782 | Feb 1972 | GBX |
1305399 | Jan 1973 | GBX |
1317433 | May 1973 | GBX |
2021428 | Dec 1979 | GBX |
Entry |
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Simmers, "Buoyant Media Filter", Proceedings, 40th International Water Conference, pp. 25-27. |
Ohshima, "Amendment Under Rule 312", File History of U.S. Pat. No. 4,115,266, issued Sep. 1978. |
U.S. patent application, Ser. No. 175,778, filed Aug. 6, 1980, Kenneth Williamson-Applicant, "Method and Apparatus for Separating Suspended Solids from Liquids". |
Number | Date | Country | |
---|---|---|---|
Parent | 478991 | Mar 1983 |