US3345123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drycleaning process in which garments are initially contacted with an organic solvent-water-deter-gent concentrate
Assignee: Emery Oleochemicals LLC
•
Filing: 1965-09-07
•
Granted: 1967-10-03
•
Expires: 1985-09-07
Abstract
No abstract record available.
Inventors
- 👤 James M Chisholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:39
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/02; D06L1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
IN A DRYCLEANING METHOD WHEREIN, AT THE START OF THE CLEANING STEP, AN ORGANIC SOLVENT CONTAINING AN OILSOLUBLE DETERGENT IS PUMPED INTO A CLEANING TUB IN WHICH THE SOILED GARMENTS ARE BEING TUMBLED, WHERIN THE SOLVENT LEVEL IN THE TUB FIRST REACHES A LEVEL SUFFICIENT TO WET SAID GARMENTS AND THEN AN OVERLFOW LEVEL, AND WHEREIN FURTHER QUANTITIES OF SAID SOLVENT ARE PUMPED INTO THE TUB FOR SUBSTANTIALLY THE BALANCE OF THE CLEANING STEP AS LIKE QUANTITIES OVERFLOW FROM THE TUB, AND A SMALL QUANTITY OF WATER (MEASURED ON THE WEIGHT OF THE FABRIC LOAD) IS ADDED TO THE SOLVENT FOR EACH LOD CLEANED THEREIN, THE IMPROVEMENT WHICH COMPRISES ADDING ALL OF SAID QUANTITY OF WATER AND A WATER-SOLUBLE DETEGENT CONTAINED THEREIN TO A PORTION OF THE ORGANIC SOLVENT INITIALLY CONTACTING THE FABRIC LOAD TO PROVIDE A TEMPORARILY HIGH CONCENTRATION OF WATER AND WATER SOLUBLE DETERGENT IN RELATION TO THE QUANTITY OF SOLVENT.
Claim 2
Dependent Claim
153 words
IN A DRYCLEANING METHOD WHEREIN, AT THE START OF THE CLEANING STEP, AN ORGANIC SOLVENT CONTAINING AN OILSOLUBLE DETERGENT IS PUMPED INTO A CLEANING TUB IN WHICH THE SOILED GARMENTS ARE BEING TUMBLED, WHERIN THE SOLVENT LEVEL IN THE TUB FIRST REACHES A LEVEL SUFFICIENT TO WET SAID GARMENTS AND THEN AN OVERLFOW LEVEL, AND WHEREIN FURTHER QUANTITIES OF SAID SOLVENT ARE PUMPED INTO THE TUB FOR SUBSTANTIALLY THE BALANCE OF THE CLEANING STEP AS LIKE QUANTITIES OVERFLOW FROM THE TUB, AND A SMALL QUANTITY OF WATER (MEASURED ON THE WEIGHT OF THE FABRIC LOAD) IS ADDED TO THE SOLVENT FOR EACH LOD CLEANED THEREIN, THE IMPROVEMENT WHICH COMPRISES ADDING ALL OF SAID QUANTITY OF WATER AND A WATER-SOLUBLE DETEGENT CONTAINED THEREIN TO A PORTION OF THE ORGANIC SOLVENT INITIALLY CONTACTING THE FABRIC LOAD TO PROVIDE A TEMPORARILY HIGH CONCENTRATION OF WATER AND WATER SOLUBLE DETERGENT IN RELATION TO THE QUANTITY OF SOLVENT.
References Cited (Backward Citations)
US2709908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |