US2607786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for recovering oil from the solvent cleaning or scouring of raw wool or woolfabric
Assignee: Individual
•
Filing: 1948-11-30
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Granted: 1952-08-19
•
Expires: 1968-11-30
Abstract
No abstract record available.
Inventors
- 👤 Roland E Derby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:01
CPC Classifications
C; C11; C11B; C11B11/00; C11B11/005; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE PROCESS FOR RECOVERING OIL AND SOLVENT FROM THE LIQUID OBTAINED FROM THE CLEANING AND SCOURING OF WOOL WITH VOLATILE CHLORINATED HYDROCARBON SOLVENT WHICH CONSISTS IN MIXING THE SAID OBTAINED LIQUID WITH ITS CONTAINED OIL FATTY, MATTER AND DIRT AND AN ALKALINE SUBSTANTIALLY ANHYDROUS, NON-SOLUBLE IN, AND OF LOWER SPECIFIC GRAVITY THAN THE SOLVENT TO TANK TO EFFECT PARTIAL SPONIFICATION OF THE FATS CONTAINED IN THE LIQUID AND TO COAGULATE THE DIRT AND FATTY MATTER, AND, AFTER THE CONGULANT MASS THUS FORMED HAS FLOATED TO THE TOP CARRYING WITH IT THE BULK
Claim 2
Dependent Claim
92 words
THE PROCESS FOR RECOVERING OIL AND SOLVENT FROM THE LIQUID OBTAINED FROM THE CLEANING AND SCOURING OF WOOL WITH VOLATILE CHLORINATED HYDROCARBON SOLVENT WHICH CONSISTS IN MIXING THE SAID OBTAINED LIQUID WITH ITS CONTAINED OIL FATTY, MATTER AND DIRT AND AN ALKALINE SUBSTANTIALLY ANHYDROUS, NON-SOLUBLE IN, AND OF LOWER SPECIFIC GRAVITY THAN THE SOLVENT TO TANK TO EFFECT PARTIAL SPONIFICATION OF THE FATS CONTAINED IN THE LIQUID AND TO COAGULATE THE DIRT AND FATTY MATTER, AND, AFTER THE CONGULANT MASS THUS FORMED HAS FLOATED TO THE TOP CARRYING WITH IT THE BULK
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |