Patent US3737485A successfully refreshed from Google Patents.
US3737485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tripentaerythritol tetraphosphite
Assignee: Borg Warner Corp
•
Filing: 1971-12-30
•
Granted: 1973-06-05
•
Expires: 1991-12-30
Abstract
Abstract THE COMPOUND BIS-3,9(4-OXYMETHYL-1-PHOSPHA - 2,6,7TRIOXABICYCLO (I,2,2) OCTANT)-2,4,8,10-TETRAOXA - 3,9 -DIPHOSPHA-SPIRO (K,5) UNDECANE IS PREPARED. IT IS USEFUL FOR STABILIZING HALOGEN CONTAINING RESINS, HYDROCARBONS, POLYMERS, ETC.
Inventors
- 👤 I Hechenbleikner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/527; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/6574; C07F9/65748
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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |