Patent US3880934A successfully refreshed from Google Patents.
US3880934A
Expired / Lapsed
US
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Nitrophenyloxy-butanediols
Assignee: Syntex USA LLC
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Filing: 1972-02-10
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Granted: 1975-04-29
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Expires: 1992-02-10
Abstract
Abstract The present invention relates to novel assay reagents, their composition, methods of preparation, and use in the detection and measurement of various biological systems and/or components, e.g. enzymes, antibodies, antigens, and periodate concentration. This invention in its basic form utilizes a class of compounds having, inter alia., a backbone chain, an indicator group, and vicinal oxidizable groups.
Inventors
- 👤 David H Rammler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:50
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07C; C07C205/00; C07C205/27; C07C205/35; C07C205/36; C07C205/37; C07C271/00; C07C271/06; C07C271/08; C07C271/10; C07C271/22; C07C305/00; C07C305/02; C07C305/04; C07C305/10; C07C323/00; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/22; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/22; C07F9/222; C12; C12Q; C12Q1/00; C12Q1/34; C12Q1/37; C12Q1/44; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/531; G01N33/532; C12Q2334/00; C12Q2334/10; Y; Y10; Y10T; Y10T436/00; Y10T436/19; Y10T436/193333
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
10 words
A COMPOUND SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
10 words
A COMPOUND SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
10 words
The compound of claim 1 wherein said compound is 1,2-dihydroxy-4-(4-Nitrophenyloxy)butane.
Claim 4
Dependent Claim
10 words
the compound of claim 1 wherein said compound is 1,2-dihydroxy-4-(2,4-dinitrophenyloxy)butane.
References Cited (Backward Citations)
GB714617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |