US4483793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimeric oligopeptides as heptenic epitopic sites for hepatitis
Assignee: University of California
•
Filing: 1982-10-04
•
Granted: 1984-11-20
•
Expires: 2002-10-04
Abstract
Abstract Methods and compositions concerned with the a determinant of hepatitis B antigen, providing immunogens and antibodies. The immunogens can serve as vaccines.
Inventors
- 👤 Girish N. Vyas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:31
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/005; A; A61; A61K; A61K39/00; A61K39/385; A61K2039/60; A61K2039/6031; A61K2039/6037; C12; C12N; C12N2730/00; C12N2730/00011; C12N2730/10011; C12N2730/10111; C12N2730/10122; Y; Y10; Y10S; Y10S530/00; Y10S530/806; Y10S930/00; Y10S930/01; Y10S930/22; Y10S930/223
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
32 words
The dimeric nonapeptide compound of the formula: ##STR4## wherein: B is hydroxyl or the residue of an hydroxylic compound which provides an ester which forms amide bonds with polypeptides in aqueous media.
Claim 2
Dependent Claim
32 words
The dimeric nonapeptide compound of the formula: ##STR4## wherein: B is hydroxyl or the residue of an hydroxylic compound which provides an ester which forms amide bonds with polypeptides in aqueous media.
Claim 3
Dependent Claim
10 words
A compound according to claim 1, wherein B is hydroxyl.
Claim 4
Dependent Claim
26 words
A compound according to claim 1, wherein hydroxylic compound which provides an ester is selected from the group consisting of N-hydroxy succinimide, para-nitrophenol and 4-hydroxy-3-nitrobenzenesulfonic acid.
References Cited (Backward Citations)
US4415491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-20 | 1988-05-21 | 1988-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-20 | 1992-05-21 | 1992-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-20 | 1996-05-21 | 1996-11-20 | $7700.00 | Window Closed / Lapsed |