US3334103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic nitroxides and process for preparing same
Assignee: Wyeth Holdings LLC
•
Filing: 1965-04-26
•
Granted: 1967-08-01
•
Expires: 1985-04-26
Abstract
No abstract record available.
Inventors
- 👤 Feldman Allan Murry
- 👤 Hoffman Arthur Kentaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:57
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/22; C07D295/24; C07D207/00; C07D207/46; C07D211/00; C07D211/92; C07D211/94; C08; C08F; C08F2/00; C08F2/38; C08F36/00; C08F36/02; C08F36/04; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/232; Y; Y10; Y10T; Y10T436/00; Y10T436/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A CYCLIC NITROXIDE OF THE FORMULA:
Claim 2
Dependent Claim
6 words
A CYCLIC NITROXIDE OF 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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |