Patent US2632762A successfully refreshed from Google Patents.
US2632762A
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Amidone amines and related derivatives
Assignee: Bristol Laboratories Inc
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Filing: 1950-06-08
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Granted: 1953-03-24
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Expires: 1970-06-08
Abstract
No abstract record available.
Inventors
- 👤 Merrill E Speeter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:17
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/32; C07D207/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2,2- DIPHENYL - 4(N,N-DIMETHYL)-1,4PENTANEDIAMINE DIHYDROCHLORIDE, 2,2 - DIPHENYL4 - (N,N - DIMETHY) - 1 - (N-ACETYL) - 1,4PENTANEDIAMINE HYDROCHLORIDE, 1 -(4'' -DIMETHYLAMINO - 2'',2'' DIPHENYLPENTYL) 2,5 -DIMENTHYLPYRROLE OXALATE, ETHYL N- (4-DIMETHYLAMINO2,2-DIPHENYLPENTYL) CARBAMATE HYDROCHLORIDE, AND 2,2 - DIPHENYL - 4 - (N,N - DIMETHYL) - 1(N - METHANESULFONYL - 1,4- PENTANEDIAMINE HYDROCHLORIDE.
Claim 2
Dependent Claim
59 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2,2- DIPHENYL - 4(N,N-DIMETHYL)-1,4PENTANEDIAMINE DIHYDROCHLORIDE, 2,2 - DIPHENYL4 - (N,N - DIMETHY) - 1 - (N-ACETYL) - 1,4PENTANEDIAMINE HYDROCHLORIDE, 1 -(4'' -DIMETHYLAMINO - 2'',2'' DIPHENYLPENTYL) 2,5 -DIMENTHYLPYRROLE OXALATE, ETHYL N- (4-DIMETHYLAMINO2,2-DIPHENYLPENTYL) CARBAMATE HYDROCHLORIDE, AND 2,2 - DIPHENYL - 4 - (N,N - DIMETHYL) - 1(N - METHANESULFONYL - 1,4- PENTANEDIAMINE HYDROCHLORIDE.
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) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |