US2820034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic compounds
Assignee: Pharmacia and Upjohn Co
•
Filing: 1955-08-16
•
Granted: 1958-01-14
•
Expires: 1975-08-16
Abstract
No abstract record available.
Inventors
- 👤 Kagan Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:20
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/32; C07D239/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF 2((2 - DIMERTHYLAMINOETHYL) (P - METHOXYBENZYL)AMINOLPYRIMIDINE N-OXIDE AND THE ACID ADDITION SALTS THEROF OF PHARMACOLOGICALLY ACCEPTABLE ACIDS.
Claim 2
Dependent Claim
25 words
A COMPOUND SELECTED FROM THE CLASS CONSISTING OF 2((2 - DIMERTHYLAMINOETHYL) (P - METHOXYBENZYL)AMINOLPYRIMIDINE N-OXIDE AND THE ACID ADDITION SALTS THEROF OF PHARMACOLOGICALLY ACCEPTABLE ACIDS.
References Cited (Backward Citations)
US2465865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |