US3283003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(n-lower alkyl-n-cycloheptyl- and cyclooctylamino) ethyl guanidines
Assignee: Smith Kline & French Laboratories Ltd
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Filing: 1961-12-19
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Granted: 1966-11-01
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Expires: 1981-12-19
Abstract
No abstract record available.
Inventors
- 👤 Jack David
- 👤 Spickett Robert Geoffr William
- 👤 Durant Graham John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:15
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A CHEMICAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE FOLLOWING FORMULA: R1-NH-C(=NH)-NH-CH2-CH2-N(-R3)-CH<(-CH2-CH2-(CH2)NCH2-CH2-CH2-) IN WHICH: R1 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND AMINO; R3 IS LOWER ALKYL; AND N IS AN INTEGER OF FROM 1 TO 2; AND NONTOXIC, PHARMACEUTICALLY ACCEPTABLE, ACID ADDITION SALTS THEREOF.
Claim 2
Dependent Claim
52 words
A CHEMICAL COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE FOLLOWING FORMULA: R1-NH-C(=NH)-NH-CH2-CH2-N(-R3)-CH<(-CH2-CH2-(CH2)NCH2-CH2-CH2-) IN WHICH: R1 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND AMINO; R3 IS LOWER ALKYL; AND N IS AN INTEGER OF FROM 1 TO 2; AND NONTOXIC, PHARMACEUTICALLY ACCEPTABLE, ACID ADDITION SALTS THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |