Drain control knob

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Information

Patent Grant
D317646

References
Source

Patent Number
D317,646
Date Filed
Thursday, January 14, 1988
36 years ago
Date Issued
Tuesday, June 18, 1991
33 years ago

Inventors
- Holly K. Yost
Original Assignees
- Price Pfister, Inc.
Examiners
- Largen; James R.
Agents
- Deutsch; Barry E.
- Hoofnagle; J. Bruce

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- D23 238-243
- D23 250-254
- 004 191-192
- 137 801
- D08 300
- D08 305
- D08 307-312
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a drain control knob, as shown and described.

US Referenced Citations (11)

Number	Name	Date	Kind
D213623	Austin	Mar 1969
D217965	Korol	Jul 1970
D235341	Korol	Jun 1975
D239624	Korol	Apr 1976
D275986	Stairs, Jr.	Oct 1984
D287270	Yost	Dec 1986
D287500	Bolget et al.	Jul 1986
D296353	Reid	Jun 1988
D296578	Reid	Jul 1988
D297356	Reid	Aug 1988
D384971	Yost	Dec 1989