US4276232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus stabilizers
Assignee: BASF Corp
•
Filing: 1979-10-09
•
Granted: 1981-06-30
•
Expires: 1999-10-09
Abstract
Abstract Alkylated 6-phenoxy-dibenz[c,e]-[1,2]oxaphosphorines are suitable as stabilizers for organic material.
Inventors
- 👤 Michael Rasberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:10
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657163; C07F9/65719; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5393
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
6-(2,4-di-tert.-octyl-phenoxy)-dibenz[c,e]-[1,2]oxaphosphorine.
Claim 2
Dependent Claim
1 words
6-(2,4-di-tert.-octyl-phenoxy)-dibenz[c,e]-[1,2]oxaphosphorine.
References Cited (Backward Citations)
US3702878A
Cited
DE2034887A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-29 | 1984-12-29 | 1985-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-29 | 1988-12-29 | 1989-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-29 | 1992-12-29 | 1993-06-30 | $7700.00 | Window Closed / Lapsed |