Number | Name | Date | Kind |
---|---|---|---|
D278560 | Wareham | Apr 1985 | |
D307657 | Li | May 1990 | |
1944950 | Riebel, Jr. | Jan 1934 | |
2210950 | Replogle | Aug 1940 | |
2293722 | Erickson | Aug 1942 | |
2303409 | Taylor | Dec 1942 | |
2779047 | Osborn | Jan 1957 | |
2854686 | Hansen | Oct 1958 | |
2876481 | Gerber et al. | Mar 1959 | |
2898621 | Vance | Aug 1959 | |
2898622 | Hurd | Aug 1959 | |
3020577 | Carabet | Feb 1962 | |
3039129 | Belicka et al. | Jun 1962 | |
3039130 | Belicka et al. | Jun 1962 | |
3126570 | Green | Mar 1964 | |
3284834 | Waters | Nov 1966 | |
3310828 | Clark et al. | Mar 1967 | |
3509590 | Koshiyama | May 1970 | |
3758914 | Nupp et al. | Sep 1973 | |
3821830 | Sundheim | Jul 1974 | |
3869265 | Wolter et al. | Mar 1975 | |
3955237 | Chateauneuf et al. | May 1976 | |
4008505 | Clowers | Feb 1977 | |
4209875 | Pugh et al. | Jul 1980 | |
4249280 | Goodrich | Feb 1981 | |
4318202 | Holman | Mar 1982 | |
4393536 | Tapp | Jul 1983 | |
4421964 | Buchtel | Dec 1983 | |
4467493 | Buchtel | Aug 1984 | |
4519113 | Hipple | May 1985 | |
4545089 | Oxel | Oct 1985 | |
4635315 | Kozak | Jan 1987 | |
4660246 | Duncan et al. | Apr 1987 | |
4662026 | Sumerau et al. | May 1987 | |
4670937 | Sumerau et al. | Jun 1987 | |
4683607 | Lackner et al. | Aug 1987 | |
4763382 | Sumerau | Aug 1988 | |
4766638 | McDowell | Aug 1988 | |
4811452 | Sumerau | Mar 1989 | |
4947512 | Lackner et al. | Aug 1990 | |
4955106 | Stein et al. | Sep 1990 | |
4959885 | Sovis et al. | Oct 1990 | |
5007133 | Lackner et al. | Apr 1991 | |
5054157 | Werner et al. | Oct 1991 | |
5086536 | Lackner et al. | Feb 1992 | |
5228169 | Stein et al. | Jul 1993 |
Number | Date | Country |
---|---|---|
648771 | Aug 1934 | DE2 |
1523210 | May 1968 | FRX |
1052161 | Dec 1966 | GBX |
2254777 | Oct 1992 | GBX |
Entry |
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Versamatic EC Brochure, Windsor Industries, Inc., 1992. |
Lindhaus U.S.A., "Lindhaus DP-5 Upright Carpet Vacuum", Jan. 1993. |
VDTA News, "Lindhaus Opens North American Sales and Distribution Center", Jan. 1993. |
Hoover Company, "Hoover Concept Two Self Propelled Cleaning System With Power Surge", Jan. 1987. |
Unknown, "Hako Minuteman's 14", 2-Motor Patriot Upright Vacuum, prior to Aug. 5, 1992. |
Stein & Co. relating to SEBO Automatic X1 Vacuum, Sep. 1992. |