US2881174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1,1 bis (p-aminophenyl) alkanols
Assignee: Pharmacia and Upjohn Co
•
Filing: 1958-04-25
•
Granted: 1959-04-07
•
Expires: 1978-04-25
Abstract
No abstract record available.
Inventors
- 👤 John B Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:12
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/10; C07D211/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
1,1-BIS(P-AMINOPHENYL)-2OXYALKANOLS REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
5 words
1,1-BIS(P-AMINOPHENYL)-2OXYALKANOLS REPRESENTED BY THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |