US4797476A
Expired / Lapsed
US
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Mono-4-arylazoaryl phosphoric esters
Assignee: Fujifilm Holdings Corp
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Filing: 1986-09-10
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Granted: 1989-01-10
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Expires: 2006-09-10
Abstract
Abstract New phosphoric ester having the following formula (I) and a method for the analysis of an alkaline phosphatase, using the phosphoric ester as a substrate: ##STR1## wherein M is a hydrogen atom or an alkali metal atom; A is phenyl, naphthyl, 2- or 4-pyridyl, 2- or 4-pyrimidyl, pyrazinyl, sym-triazinyl, 2-imidazolyl, 2-oxazolyl, 2-thiazolyl, or sym-thiadiazolyl group which may or may not be substituted with other substituent(s) or may form a condensed ring together with a benzene ring, if possible; B is paraphenylene group or may form naphthylene group by condensation together with a benzene ring, said groups may or may not be substituted with other substituent(s).
Inventors
- 👤 Yoshio Inagaki
- 👤 Masaki Okazaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:50
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/34; C12Q1/42; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/12; C07F9/547; C07F9/553; C07F9/576; C07F9/58; C07F9/60; C07F9/6527; C07F9/653; C07F9/65324; C07F9/6536; C07F9/6539; C07F9/6541; C07F9/6553; C07F9/655345; C12Q2334/00; Y; Y10; Y10T; Y10T436/00; Y10T436/17
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
17 words
A phosphoric ester selected from the group consisting of: ##STR8## wherein M is hydrogen, sodium or potassium.
Claim 2
Dependent Claim
17 words
A phosphoric ester selected from the group consisting of: ##STR8## wherein M is hydrogen, sodium or potassium.
Claim 3
Dependent Claim
6 words
The phosphoric ester which is ##STR9##
Claim 4
Dependent Claim
6 words
The phosphoric ester which is ##STR9##
Claim 5
Dependent Claim
6 words
The phosphoric ester which is ##STR10##
Claim 6
Dependent Claim
6 words
The phosphoric ester which is ##STR10##
Claim 7
Dependent Claim
19 words
The phosphoric ester of claim 1, which is of the formula: ##STR11## wherein M is hydrogen, sodium or potassium.
Claim 8
Dependent Claim
19 words
The phosphoric ester of claim 1, which is of the formula: ##STR12## wherein M is hydrogen, sodium or potassium.
Claim 9
Dependent Claim
19 words
The phosphoric ester of claim 1, which is of the formula: ##STR13## wherein M is hydrogen, sodium or potassium.
Claim 10
Dependent Claim
19 words
The phosphoric ester of claim 1, which is of the formula: ##STR14## wherein M is hydrogen, sodium or potassium.
Claim 11
Dependent Claim
19 words
The phosphoric ester of claim 1, which is of the formula: ##STR15## wherein M is hydrogen, sodium or potassium.
Claim 12
Dependent Claim
19 words
The phosphoric ester of claim 1, which is of the formula: ##STR16## wherein M is hydrogen, sodium or potassium.
Claim 13
Dependent Claim
19 words
The phosphoric ester of claim 1, which is of the formula: ##STR17## wherein M is hydrogen, sodium or potassium.
Claim 14
Dependent Claim
19 words
The phosphoric ester of claim 1, which is of the formula: ##STR18## wherein M is hydrogen, sodium or potassium.
Claim 15
Dependent Claim
19 words
The phosphoric ester of claim 1, which is of the formula: ##STR19## wherein M is hydrogen, sodium or potassium.
Claim 16
Dependent Claim
19 words
The phosphoric ester of claim 1, which is of the formula: ##STR20## wherein M is hydrogen, sodium or potassium.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |