Patent US2653431A successfully refreshed from Google Patents.
Patent US5286067A successfully refreshed from Google Patents.
Patent US2948722A successfully refreshed from Google Patents.
US2948722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-(1, 2, 3, 4-tetrahydroisoquinolino)-omega-amino-3-ethinyl-3-hydroxy alkanes
Assignee: LAKESIDE LAB Inc
•
Filing: 1958-05-05
•
Granted: 1960-08-09
•
Expires: 1978-05-05
Abstract
No abstract record available.
Inventors
- 👤 John H Biel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:40
CPC Classifications
C; C07; C07D; C07D217/00; C07D217/02; C07D217/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
11 words
A MEMBER OF THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAE
Claim 2
Dependent Claim
11 words
A MEMBER OF THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAE
Claim 3
Dependent Claim
10 words
MEMBER OF THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAE
Claim 4
Dependent Claim
10 words
MEMBER OF THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAE
References Cited (Backward Citations)
US2830048A
Cited
US2830049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |