US3305554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Streptovitacins
Assignee: Pharmacia and Upjohn Co
•
Filing: 1965-09-20
•
Granted: 1967-02-21
•
Expires: 1985-09-20
Abstract
No abstract record available.
Inventors
- 👤 Malcolm E Bergy
- 👤 Thomas E Eble
- 👤 John S Evans
- 👤 Ross R Herr
- 👤 Robert W Heinle
- 👤 Charles M Large
- 👤 Walter T Sokolski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:19
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/80; C07D211/84; C07D211/86; C07D211/88; Y; Y10; Y10S; Y10S435/00; Y10S435/803; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/897
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
19 words
AS A SOLID COMPOSITION OF MATTER 3-(2-(4-HYDROXY3,5 - DIMENTHYL - 2 - OXOCYCLOHEXYL) - 2-HYDROXYETHYL)-GLUTARIMIDE, HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
19 words
AS A SOLID COMPOSITION OF MATTER 3-(2-(4-HYDROXY3,5 - DIMENTHYL - 2 - OXOCYCLOHEXYL) - 2-HYDROXYETHYL)-GLUTARIMIDE, HAVING THE STRUCTURAL FORMULA:
Claim 3
Dependent Claim
9 words
A SOLID SUBSTANCE, STREPTOVITACIN C1, HAVING THE FORMULA I
Claim 4
Dependent Claim
9 words
A SOLID SUBSTANCE, STREPTOVITACIN C1, HAVING THE FORMULA I
Claim 5
Dependent Claim
53 words
A PROCESS FOR THE ISOLATION OF STREPTOVITACIN, A COMPOUND HAVING THE STRUCTURAL FORMULA I FOR THE BEER PRODUCED IN A CYCLOHEXIMIDE FERMENTATION WHICH COMPRISES FILTERING THE WHOLE BEER, REMOVING THE CYCLOHEXIMIDE BY SOLVENT EXTRACTION, RECOVERING STREPTOVITACIN COMPLEX FROM THE SPENT BEER, AND ISOLATING AT LEAST ONE OF THE STREPTOVITACIN COMPOUNDS OF SAID COMPLEX.
Claim 6
Dependent Claim
53 words
A PROCESS FOR THE ISOLATION OF STREPTOVITACIN, A COMPOUND HAVING THE STRUCTURAL FORMULA I FOR THE BEER PRODUCED IN A CYCLOHEXIMIDE FERMENTATION WHICH COMPRISES FILTERING THE WHOLE BEER, REMOVING THE CYCLOHEXIMIDE BY SOLVENT EXTRACTION, RECOVERING STREPTOVITACIN COMPLEX FROM THE SPENT BEER, AND ISOLATING AT LEAST ONE OF THE STREPTOVITACIN COMPOUNDS OF SAID COMPLEX.
References Cited (Backward Citations)
US2612502A
Cited
US3214431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |