US3734883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing organic material with piperidone azines
Assignee: Novartis Corp
•
Filing: 1971-04-09
•
Granted: 1973-05-22
•
Expires: 1991-04-09
Abstract
Abstract A PROCESS FOR STABILISING ORGANIC MATERIAL BY INCORPORATING INTO SAID MATERIAL A MINOR PROPORTION OF CERTAIN PIPERIDONE AZINES, THEREBY IMPARTING TO THE MATERIAL AN UNEXPECTEDLY HIGH DEGREE OF STABILITY TO EXPOSURE TO LIGHT RADIATION, AS WELL AS STABILISING COMPOSITIONS COMPRISING AN ORGANIC MATERIAL AND A MINOR PROPORTION OF SAID PIPERIDONE AZINES, ARE DISCLOSED.
Inventors
- 👤 B Holt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:45
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/30; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3435
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |