Patent US4467085A successfully refreshed from Google Patents.
US4467085A
Expired / Lapsed
US
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Chemical compounds, process for their preparation, agents containing these compounds, and their use
Assignee: Individual
•
Filing: 1981-04-28
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Granted: 1984-08-21
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Expires: 2001-04-28
Abstract
Abstract Carrier-bonded compounds are described which serve as chromogens for analytical indicators contained in a carrier. A process for the preparation of these carrier-bonded chromogens, an agent containing these chromogens, and their use in the detection and determination of constituents of body fluids and excrements are also described.
Inventors
- 👤 Gerhard Scharf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:11
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/54; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; G01N33/521; Y; Y10; Y10T; Y10T436/00; Y10T436/14; Y10T436/142222; Y10T436/143333; Y10T436/144444
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
28 words
A compound selected from the group consisting of compounds of the formula ##STR3## wherein R is H or--CH 2 CH 2 OH, ##STR4## wherein said Polymer is insoluble.
Claim 2
Dependent Claim
28 words
A compound selected from the group consisting of compounds of the formula ##STR3## wherein R is H or--CH 2 CH 2 OH, ##STR4## wherein said Polymer is insoluble.
Claim 3
Dependent Claim
15 words
A compound as in claim 1 wherein said Polymer is a polymer carrying hydroxyl groups.
Claim 4
Dependent Claim
11 words
A compound as in claim 1 wherein said Polymer is cellulose.
Claim 5
Dependent Claim
21 words
The compound as in claim 1 of the formula ##STR5## in which R is H or --CH 2 CH 2 OH.
Claim 6
Dependent Claim
15 words
The compound as in claim 4 wherein said Polymer is a polymer carrying hydroxyl groups.
Claim 7
Dependent Claim
11 words
The compound as in claim 4 wherein said Polymer is cellulose.
Claim 8
Dependent Claim
10 words
A compound as in claim 1 of the formula ##STR6##
Claim 9
Dependent Claim
15 words
The compound as in claim 7 wherein said Polymer is a polymer carrying hydroxyl groups.
Claim 10
Dependent Claim
11 words
The compound as in claim 7 wherein said Polymer is cellulose.
Claim 11
Dependent Claim
10 words
A compound as in claim 1 of the formula ##STR7##
Claim 12
Dependent Claim
15 words
The compound as in claim 10 wherein said Polymer is a polymer carrying hydroxyl groups.
Claim 13
Dependent Claim
11 words
The compound as in claim 10 wherein said Polymer is cellulose.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |