US3574050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separating into its components and recovering for reuse plastic coated paper
Assignee: Lowe Paper Co
•
Filing: 1962-08-21
•
Granted: 1971-04-06
•
Expires: 1982-08-21
Abstract
Abstract PAPER STOCK MATERIAL COATED WITH SYNTHETIC PLASTICS IS SEPARATED INTO ITS COMPONENTS FOR REUSE. THE COATED PAPER IS SHREDDED INTO ABOUT ONE-HALF TO TWO INCH STRIPS. THE STRIPS ARE PULPED INTO WATER AT A TEMPERATURE OF ABOUT 160*F. WHERE THE DEFIBERING IS ACCOMPLISHED WITHOUT DISINTEGRATION OF THE PLASTIC WASTE. THE PULPED MATERIAL IS THEN SCREENED WHEREBY THE PLASTIC WASTE IS SEPARATED FROM THE CELLULOSIC MATERIAL.
Inventors
- 👤 John C Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:09
CPC Classifications
D; D21; D21B; D21B1/00; D21B1/04; D21B1/12; D21B1/30; D21B1/32; D21B1/322; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/64
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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |