|
PTO
Wrapper
PDF
|
|
Dossier
Espace
Google
|
|
|
|
Patent
D335464
|
|
Priority
Nov 28 1989
|
|
Filed
May 24 1990
|
|
Issued
May 11 1993
|
|
Expiry
May 11 2007
|
|
|
|
Assg.orig
|
|
|
|
Entity
unknown
|
|
2
|
|
8
|
|
n/a
|
|
|
|
The ornamental design for an analytical instrument for testing parameters of pool water, as shown and described.
|
FIG. 1 is a front perspective view of an analytical instrument for testing
parameters of pool water, showing our new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front perspective view thereof, with the top in open position;
and,
FIG. 4 is a rear perspective view thereof.
The bottom plan view of the analytical instrument for testing parameters of
pool water, which is not disclosed is plain and unornamented.
Marks, Colin E.
| Patent |
Priority |
Assignee |
Title |
| 3381572, |
|
|
|
| 4409182, |
Jun 23 1980 |
|
Colorimeter test kit apparatus |
| 4454775, |
Oct 27 1980 |
|
Chemical tester for pools |
| 4904605, |
Jun 20 1988 |
3M Innovative Properties Company |
Method and apparatus for residential water test kit |
| D256567, |
May 26 1977 |
Tintometer GmbH |
Pool water tester |
| D282644, |
Jun 08 1983 |
Miles Laboratories, Inc. |
Reflectance colorimeter |
| D308833, |
Nov 20 1986 |
AQUARIUM SYSTEMS, INC DELAWARE CORPORATION |
Comparator for chemical testing of water |
| D316826, |
Sep 16 1988 |
EXOCELL, INC , A CORP OF PA |
Analytic colormetric instrument |
| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a