Patent US3884902A successfully refreshed from Google Patents.
US3884902A
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Sulfonyl derivatives of erythromycin
Assignee: Abbott Laboratories
•
Filing: 1973-05-04
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Granted: 1975-05-20
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Expires: 1993-05-04
Abstract
Abstract Covers erythromycin sulfonyl derivatives which are useful as antibiotics when administered to warm blooded animals.
Inventors
- 👤 Robert Hallas
- 👤 Jerry Roy Martin
- 👤 John Soloman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:16
CPC Classifications
C; C07; C07H; C07H17/00; C07H17/04; C07H17/08
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
6 words
AN ERTHROMYCIN COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
6 words
AN ERTHROMYCIN COMPOUND HAVING THE FORMULA:
Claim 3
Dependent Claim
14 words
The derivative of claim 1 wherein R is dialkyl amino and R3 is hydrogen.
Claim 4
Dependent Claim
13 words
The derivative of claim 1 wherein R is methoxy and R3 is hydroxy.
Claim 5
Dependent Claim
13 words
The derivative of claim 1 wherein R is methoxy and R3 is hydrogen.
Claim 6
Dependent Claim
13 words
The derivative of claim 1 wherein R is morpholino and R3 is hydrogen.
Claim 7
Dependent Claim
13 words
The derivative of claim 1 wherein R is morpholino and R3 is hydroxy.
Claim 8
Dependent Claim
13 words
The derivative of claim 1 wherein R is N-methylpiperazino and R3 is hydroxy.
Claim 9
Dependent Claim
13 words
The derivative of claim 1 wherein R is N-methylpiperazino and R3 is hydrogen.
Claim 10
Dependent Claim
13 words
The derivative of claim 1 wherein R is methylthio and R3 is hydroxy.
Claim 11
Dependent Claim
13 words
The derivative of claim 1 wherein R is methylsulfonyl and R3 is hydroxy.
Claim 12
Dependent Claim
13 words
The derivative of claim 1 whereiN R is 4-acetanilino-1-piperidino and R3 is hydroxy.
Claim 13
Dependent Claim
13 words
The derivative of claim 1 wherein R is 4-acetanilino-1-piperidino and R3 is hydrogen.
Claim 14
Dependent Claim
13 words
The derivative of claim 1 wherein R is phenylthio and R3 is hydrogen.
Claim 15
Dependent Claim
13 words
The derivative of claim 1 wherein R is phenylthio and R3 is hydroxy.
Claim 16
Dependent Claim
13 words
The derivative of claim 1 wherein R is phenylsulfonyl and R3 is hydrogen.
Claim 17
Dependent Claim
13 words
The derivative of claim 1 wherein R is thiamorpholino and R3 is hydroxy.
Claim 18
Dependent Claim
13 words
The derivative of claim 1 wherein R is aziridino and R3 is hydroxy.
Claim 19
Dependent Claim
13 words
The derivative of claim 1 wherein R is aziridino and R3 is hydrogen.
Claim 20
Dependent Claim
13 words
The derivative of claim 1 wherein R is p-tolylthio and R3 is hydrogen.
Claim 21
Dependent Claim
13 words
The derivative of claim 1 wherein R is p-aminophenylthio and R3 is hydroxy.
Claim 22
Dependent Claim
13 words
The derivative of claim 1 wherein R is p-aminophenylthio and R3 is hydrogen.
Claim 23
Dependent Claim
13 words
The derivative of claim 1 wherein R is p-chlorophenylthio and R3 is hydrogen.
Claim 24
Dependent Claim
13 words
The derivative of claim 1 wherein R is p-fluorophenylthio and R3 is hydroxy.
Claim 25
Dependent Claim
13 words
The derivative of claim 1 wherein R is piperidino and R3 is hydrogen.
References Cited (Backward Citations)
US3000874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |