Conical filter
Gillingham , et al. July 11, 2
U.S. patent number D428,128 [Application Number D/087,358] was granted by the patent office on 2000-07-11 for conical filter. This patent grant is currently assigned to Donaldson Company, Inc.. Invention is credited to Steven A. Carter, Gary R. Gillingham, Daniel T. Risch, Jim C. Rothman, Joseph C. Tokar, Wayne M. Wagner.
| United States Patent | D428,128 |
| Gillingham , et al. | July 11, 2000 |
Conical filter
Claims
The ornamental design for a conical filter, as shown and described.
| Inventors: | Gillingham; Gary R. (Prior Lake, MN), Wagner; Wayne M. (Apple Valley, MN), Tokar; Joseph C. (Apple Valley, MN), Risch; Daniel T. (Burnsville, MN), Rothman; Jim C. (Burnsville, MN), Carter; Steven A. (Eagan, MN) |
|---|---|
| Assignee: | Donaldson Company, Inc.
(Minneapolis, MN) |
| Family ID: | 58212831 |
| Appl. No.: | D/087,358 |
| Filed: | April 30, 1998 |
Related U.S. Patent Documents
| Application Number | Filing Date | Patent Number | Issue Date | ||
|---|---|---|---|---|---|
| 053683 | Apr 26, 1996 | Des. 399944 | |||
| Current U.S. Class: | D23/365 |
| Current CPC Class: | B01D46/527 20130101; B01D2275/206 20130101; B01D2275/201 20130101 |
| Current International Class: | 2304 |
| Field of Search: | ;D23/365 ;55/498 ;210/439,484,493.4 |
References Cited [Referenced By]
U.S. Patent Documents
| D342990 | January 1994 | Jaroszcyk |
| 1639133 | August 1927 | Greene |
| 2552615 | May 1951 | Baltzer |
| 2558185 | June 1951 | Leisen |
| 3112184 | November 1963 | Hollenbach |
| 3738088 | June 1973 | Colosimo |
| 3807150 | April 1974 | Maracle |
| 4039457 | August 1977 | Schacht et al. |
| 4157902 | June 1979 | Tokar |
| 4199387 | April 1980 | Hladik |
| 4430223 | February 1984 | Miyakawa et al. |
| 4439321 | March 1984 | Taki et al. |
| 4589983 | May 1986 | Wydevan |
| 4782912 | November 1988 | Wandless |
| 4925561 | May 1990 | Ishii et al. |
| 4936413 | June 1990 | Lee |
| 5106397 | April 1992 | Jaroszczyk et al. |
| 5125940 | June 1992 | Stanhope et al. |
| 5320657 | June 1994 | Adams |
| 5458666 | October 1995 | Miyakata |
| 5522909 | June 1996 | Haggard |
| 5549722 | August 1996 | Zemaitis et al. |
| 5549724 | August 1996 | Mochida |
| 703823 | Feb 1954 | GB | |||
Attorney, Agent or Firm: Merchant & Gould P.C.
Description
FIG. 1 shows a perspective view of a conical filter showing our new design;
FIG. 2 shows a side elevational view thereof, the other sides being indentical to that shown;
FIG. 3 shows a top plan view thereof; and,
FIG. 4 shows a bottom plan view thereof.
* * * * *
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 