US3893992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-acylated peptides of amino aromatic sulfonic acids and their derivatives
Assignee: Rohm and Haas Co
•
Filing: 1973-12-12
•
Granted: 1975-07-08
•
Expires: 1993-12-12
Abstract
Abstract Polypeptides which are useful for evaluating pancreatic enzyme sufficiently in animal organisms have the formula
Inventors
- 👤 Benneville Peter L De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:26
CPC Classifications
C; C07; C07K; C07K1/00; C07K1/06; C07K1/061; C07K1/062; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/18; C07D209/20; C07K5/00; C07K5/04; C07K5/06; C07K5/06008; C07K5/06078; C12; C12Q; C12Q2337/00; G; G01; G01N; G01N2333/00; G01N2333/90; G01N2333/914; G01N2333/948
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
12 words
A compound according to claim 1 wherein n and m are zero.
Claim 4
Dependent Claim
12 words
A compound according to claim 2 wherein R is a phenyl group.
Claim 5
Dependent Claim
12 words
A compound according to claim 2 wherein R is a (C1-C4)alkyl group.
Claim 6
Dependent Claim
12 words
A compound according to claim 2 wherein R is a (C1-C4)alkoxy group.
Claim 7
Dependent Claim
13 words
A compound according to claim 2 wherein NHR''CO is phenylalanyl, tyrosyl, or tryptophyl.
Claim 8
Dependent Claim
12 words
A compound according to claim 6 wherein R'''' is an amino group.
Claim 9
Dependent Claim
12 words
A compound according to claim 7 wherein the compound is N-benzoyl-L-phenylalanyl sulfanilamide.
Claim 10
Dependent Claim
11 words
A compound according to claim 7 wherein the compound is N-benzoyl-L-tyrosylsulfanilamide.
Claim 11
Dependent Claim
20 words
A compound according to claim 2 wherein the compound is N-benzoyl-L-tyrosyl-p-aminobenzene sulfonic acid, its sodium salt, or its ammonium salt.
Claim 12
Dependent Claim
34 words
A compound according to claim 6 wherein R'''' is an amino group, a (C1-C4)alkoxy group, a hydroxy group or the sodium or ammonium salt of the group in which R'''' is a hydroxy group.
References Cited (Backward Citations)
US3660436A
Cited
US3808191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |