US2704284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Therapeutic compounds
Assignee: Abbott Laboratories
•
Filing: 1952-06-28
•
Granted: 1955-03-15
•
Expires: 1972-06-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Weston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:15
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
THE BASIC ESTERS OF THE FORMULA
Claim 2
Dependent Claim
6 words
THE BASIC ESTERS OF THE FORMULA
References Cited (Backward Citations)
CH240162A
Cited
US2404588A
Cited
CH249042A
Cited
CH249041A
Cited
CH249036A
Cited
GB582535A
Cited
US2589937A
Cited
US2573015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-14 | 1958-09-13 | 1959-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-14 | 1962-09-13 | 1963-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-14 | 1966-09-13 | 1967-03-15 | $7700.00 | Window Closed / Lapsed |