US3847892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Octapeptide solid phase-fragment process and pentapeptide intermediates
Assignee: F Hoffmann La Roche AG
•
Filing: 1973-06-29
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Granted: 1974-11-12
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Expires: 1993-06-29
Abstract
Abstract 1. BENZYLOXYCARBONYL-GLYCYL-L-PHENYLALANYL-L-PHENYLALANYL-O-BENZYL-L-TYROSYL-O -BENZYL-L:THREONINE.
Inventors
- 👤 S Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:41
CPC Classifications
C; C07; C07K; C07K5/00; C07K5/04; C07K5/08; C07K5/0821; C07K5/0823; C07K5/10; C07K5/1002; C07K5/1005; C07K5/1008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
2 words
BENZYLOXYCARBONYL-GLYCYL-L-PHENYLALANYL-L-PHENYLALANYL-O-BENZYL-L-TYROSYL-O -BENZYL-L:THREONINE.
Claim 2
Dependent Claim
2 words
BENZYLOXYCARBONYL-GLYCYL-L-PHENYLALANYL-L-PHENYLALANYL-O-BENZYL-L-TYROSYL-O -BENZYL-L:THREONINE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |