Single tank water softener
Fletcher , et al. April 3, 2
U.S. patent number D439,950 [Application Number D/120,751] was granted by the patent office on 2001-04-03 for single tank water softener. This patent grant is currently assigned to Ecowater Systems, Inc.. Invention is credited to David Bardwell, Christine Fletcher, Christopher I. Hilgers, Kurt Taylor.
| United States Patent | D439,950 |
| Fletcher , et al. | April 3, 2001 |
| **Please see images for: ( Reexamination Certificate ) ** |
Single tank water softener
Claims
The ornamental design for the single tank water softener, as shown.
| Inventors: | Fletcher; Christine (Elk River, MN), Hilgers; Christopher I. (Eagan, MN), Taylor; Kurt (Burnsville, MN), Bardwell; David (Woodbury, MN) |
|---|---|
| Assignee: | Ecowater Systems, Inc. (St.
Paul, MN) |
| Appl. No.: | D/120,751 |
| Filed: | March 24, 2000 |
| Current U.S. Class: | D23/207 |
| Current International Class: | 2301 |
| Field of Search: | ;D23/207,209 ;210/140,190,435 |
References Cited [Referenced By]
U.S. Patent Documents
| D221075 | July 1971 | Marsh |
| D224708 | September 1972 | Marsh |
| D231456 | April 1974 | Marsh |
| D245786 | September 1977 | Marsh |
| D332480 | January 1993 | Sieren |
Attorney, Agent or Firm: Piper, Marbury, Rudnick & Wolfe
Description
FIG. 1 is a right front perspective view of the single tank water softener;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a back elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
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