US2552502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beta-(pyrrolidyl-1)-propanol-2
Assignee: Pharmacia and Upjohn Co
•
Filing: 1947-09-11
•
Granted: 1951-05-08
•
Expires: 1967-09-11
Abstract
No abstract record available.
Inventors
- 👤 Eugene H Woodruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:02
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A COMPOUND FROM THE CONSISTING OF ALKYL-BETA-(PYRROLIDYL - 1) - ETHANOLS HAVING THE FORMULA:
Claim 2
Dependent Claim
14 words
A COMPOUND FROM THE CONSISTING OF ALKYL-BETA-(PYRROLIDYL - 1) - ETHANOLS HAVING THE FORMULA:
References Cited (Backward Citations)
DE282456C
Cited
DE116335C
Cited
FR851178A
Cited
US2326721A
Cited
US2410197A
Cited
US2430268A
Cited
US2454092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |