Patent US3243423A successfully refreshed from Google Patents.
US3243423A
Expired / Lapsed
US
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Process for the preparation of peptides
Assignee: Organon NV
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Filing: 1962-04-11
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Granted: 1966-03-29
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Expires: 1982-04-11
Abstract
No abstract record available.
Inventors
- 👤 Beyerman Hugo Christiaan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:07
CPC Classifications
C; C07; C07K; C07K1/00; C07K1/06; C07K1/061; C07K1/065; C07C; C07C227/00; C07C227/14; C07C227/16; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/55
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
22 words
AN O-TERT-BUTYL ETHER OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF L-STERINE, L-THREONINE, L-TYROSINE, L-ASPARAGINYL-L-THREONINE, L-METHIONYL-L-ASPARAGINYL-LTHREONINE, AND THEIR N-ACYLATES AND ESTERS.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |