US2949336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatus for dry cleaning
Assignee: STAMFORD CHEMICAL Co
•
Filing: 1956-05-28
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Granted: 1960-08-16
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Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 Edwin B Michaels
- 👤 Morris U Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:23
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/22; D06F; D06F43/00; D06F43/005; D06L1/02; D06L1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A PROCESS FOR ENHANCING THE DRY CLEANING OF GARMENTS AND FABRICS BY THE REGULATION AND CONTROL OF WATER ADDED TO A DETERGENT CHARGED ORGANIC CLEANING SOLVENT SYSTEM WHICH COMPRISES INTRODUCING SOILED GARMENTS INTO A WASHING ZONE, SUBJECTING SAID GARMENTS TO THE WASHING ACTION OF AN ORGANIC CLEANING SOLVENT CONTAINING DETERGENT WHILE INTRODUCING WATER THEREIN, REGULATING THE INCORPORATION OF WATER IN SAID SOLVENT SYSTEM SO AS TO ESTABLISH AND MAINTAIN A PREDETERMINED TERMINAL R.H. OF THE GARMENTS IN THE SOLVENT CLEANING ZONE OF FROM ABOUT 60% TO 80% AND MAINTAINING SAID PREDETERMINED RELATIVE HUMIDITY BY INCORPORATING A WATER SENSING RESPONSIVE DEVICE DIRECTLY THEREIN, SAID RESPONSIVE DEVICE COMPRISING AN INERT, INTEGRAL, IONIC-MODIFIED-SURFACE DIELECTRIC SYNTHETIC RESIN MATERIAL.
Claim 2
Dependent Claim
114 words
A PROCESS FOR ENHANCING THE DRY CLEANING OF GARMENTS AND FABRICS BY THE REGULATION AND CONTROL OF WATER ADDED TO A DETERGENT CHARGED ORGANIC CLEANING SOLVENT SYSTEM WHICH COMPRISES INTRODUCING SOILED GARMENTS INTO A WASHING ZONE, SUBJECTING SAID GARMENTS TO THE WASHING ACTION OF AN ORGANIC CLEANING SOLVENT CONTAINING DETERGENT WHILE INTRODUCING WATER THEREIN, REGULATING THE INCORPORATION OF WATER IN SAID SOLVENT SYSTEM SO AS TO ESTABLISH AND MAINTAIN A PREDETERMINED TERMINAL R.H. OF THE GARMENTS IN THE SOLVENT CLEANING ZONE OF FROM ABOUT 60% TO 80% AND MAINTAINING SAID PREDETERMINED RELATIVE HUMIDITY BY INCORPORATING A WATER SENSING RESPONSIVE DEVICE DIRECTLY THEREIN, SAID RESPONSIVE DEVICE COMPRISING AN INERT, INTEGRAL, IONIC-MODIFIED-SURFACE DIELECTRIC SYNTHETIC RESIN MATERIAL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |