Patent US3060143A successfully refreshed from Google Patents.
US3060143A
Expired / Lapsed
US
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Certain di-lower alkyl amino lower alkyl-polymethylated tetrahydropyridines and salts thereof
Assignee: May and Baker Ltd
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Filing: 1959-06-19
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Granted: 1962-10-23
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Expires: 1979-06-19
Abstract
No abstract record available.
Inventors
- 👤 Lee Glyn Evan
- 👤 Wragg William Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:25
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/68; C07D211/70; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/48
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
A MEMBER OF THE CLASS CONSISTING OF THE TETRAHYDROPYRIDINES OF THE FORMULA:
Claim 2
Dependent Claim
12 words
A MEMBER OF THE CLASS CONSISTING OF THE TETRAHYDROPYRIDINES OF THE FORMULA:
Claim 3
Dependent Claim
8 words
A PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALT OF 4-(3-DIMETHYLAMINOPROPYL)-1,2,2,6,-PENTAMETHYL-1,2,3,6TETRAHYDROPYRIDINE.
Claim 4
Dependent Claim
8 words
A PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALT OF 4-(3-DIMETHYLAMINOPROPYL)-1,2,2,6,-PENTAMETHYL-1,2,3,6TETRAHYDROPYRIDINE.
References Cited (Backward Citations)
US2797224A
Cited
US2838441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |