US4784804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N,N'-bis(4-azidobenzoyl)cystine
Assignee: New York University
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Filing: 1986-08-04
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Granted: 1988-11-15
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Expires: 2006-08-04
Abstract
Abstract N,N'-Bis(4-Azidobenzoyl) Cystine useful as photoaffinity labels.
Inventors
- 👤 Ross S. Basch
- 👤 Michiel E. Ultee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:27
CPC Classifications
C; C07; C07C; C07C247/00; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/531; G01N33/532; G01N33/534; G01N33/58; G01N33/60
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
55 words
A compound of the formula: ##STR4## wherein x is 1 or 2; y is 1 when x is 1 and y is zero when x is 2; R is H + or monovalent cation which appended to the COO - group forms a water-soluble salt; and 35 S signifies the radioactive sulfur isotope sulfur -35.
Claim 2
Dependent Claim
55 words
A compound of the formula: ##STR4## wherein x is 1 or 2; y is 1 when x is 1 and y is zero when x is 2; R is H + or monovalent cation which appended to the COO - group forms a water-soluble salt; and 35 S signifies the radioactive sulfur isotope sulfur -35.
Claim 3
Dependent Claim
11 words
The compound of claim 1 wherein R is H + .
Claim 4
Dependent Claim
12 words
The compound of claim 1 wherein R is NH 4 + .
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) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |