Colorimeter

Follow

Information

Patent Grant
D321488

References
Source

Patent Number
D321,488
Date Filed
Friday, April 29, 1988
36 years ago
Date Issued
Tuesday, November 12, 1991
33 years ago

Inventors
- Robert B. Summers
- George H. Sierra
Original Assignees
- Boehringer Mannheim Corporation
Examiners
- Holtje; Nelson C.
- Davis; Antoine D.
Agents
- Barnes & Thornburg

US Classifications
- D10 - Measuring, testing, or signalling instruments
Field of Search
- US
- D10 46
- D10 81
- D14 100
- 356 42
- 356 421
- 356 422
- 356 423
- 356 424
- 356 425
- 356 446
- 356 4 D
- 364 41309
- 364 526
- 436 7
- 436 8
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a colorimeter, as shown.

US Referenced Citations (5)

Number	Name	Date	Kind
D282644	Collister	Feb 1986
D292277	Collister et al.	Oct 1987
D312621	Soren et al.	Dec 1990
4552458	Lowne	Nov 1985
4871258	Herpichbochn et al.	Oct 1989