US2715634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of biocytin
Assignee: Merck and Co Inc
•
Filing: 1953-09-09
•
Granted: 1955-08-16
•
Expires: 1973-09-09
Abstract
No abstract record available.
Inventors
- 👤 Weijlard John
- 👤 Tishler Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:34
CPC Classifications
C; C07; C07D; C07D495/00; C07D495/02; C07D495/04; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
THE PROCESS FOR MANUFACTURING E-N-(D-BIOTINYL)-LLYSINE WHICH COMPRISES CONDENSING L-LYSINE WITH A BIOTIN ESTER HAVING THE FORMULA
Claim 2
Dependent Claim
16 words
THE PROCESS FOR MANUFACTURING E-N-(D-BIOTINYL)-LLYSINE WHICH COMPRISES CONDENSING L-LYSINE WITH A BIOTIN ESTER HAVING THE FORMULA
References Cited (Backward Citations)
US2519530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |