US3274212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1, 3-dialkylprolines
Assignee: Pharmacia and Upjohn Co
•
Filing: 1964-06-15
•
Granted: 1966-09-20
•
Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Barney J Magerlein
- 👤 Robert D Birkenmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:00
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/06; A61K47/22; C; C07; C07D; C07D207/00; C07D207/02; C07D207/04; C07D207/10; C07D207/16; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
N - ACETYL-2,2-DICARBOETHOXY-3-PROPYL-5-HYDROXYPRROLIDINE.
Claim 2
Dependent Claim
3 words
N - ACETYL-2,2-DICARBOETHOXY-3-PROPYL-5-HYDROXYPRROLIDINE.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |