US3687873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for reclamation of multicomponent mixtures of waste thermoplastic materials
Assignee: Dow Chemical Co
•
Filing: 1970-10-26
•
Granted: 1972-08-29
•
Expires: 1990-10-26
Abstract
Abstract A METHOD OF RECLAMATION OF MIXTURES OF WASTE THERMOPLASTIC MATERIALS INTO COMPATIBLE BLENDS OF IMPROVED PROPERTIES COMPRISING PREPARING A FUSION BLEND OF SUCH MATERIALS WITH FROM ABOUT 15 TO 35 WEIGHT PERCENT OF CERTAIN CHLORINATED OLEFIN POLYMERS.
Inventors
- 👤 Earle L Kropscott
- 👤 Robert R Blanchard
- 👤 James N Schramm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:46
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/06; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y10; Y10S; Y10S264/00; Y10S264/911; Y10S264/921
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |