US3595741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reclaiming stock from waste material
Assignee: Riverside Paper Corp
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Filing: 1970-03-09
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Granted: 1971-07-27
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Expires: 1990-03-09
Abstract
Abstract A SOLVENT EXTRACTION METHOD FOR RECLAIMING STOCK FROM WASTE MATERIALS CONTAINING NATURAL OR SYNTHETIC PLASTIC OR RESIN MATERIAL BY EXTRACTING THE PLASTIC OR RESIN MATERIAL WITH A SUITABLE SOLVENT. THE MISCELLA IS SEPARATED FROM THE STOCK AND THE SOLVENT IS RECOVERED BY DISTILLATION DURING WHICH A HYDROCARBON CARRIER IS ADDED TO THE MISCELLA TO FORM A FAVORABLE LIQUID WASTE RESIDUE WHICH IS READILY RECOVERABLE FROM THE DISTILLATION APPARATUS.
Inventors
- 👤 Robert B Goss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:22
CPC Classifications
D; D21; D21C; D21C5/00; D21C5/02; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/64
Claims Analysis
Total Claims: 0
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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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |