US2695250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dry cleaning and weatherproofing fabrics
Assignee: Emery Oleochemicals LLC
•
Filing: 1951-07-28
•
Granted: 1954-11-23
•
Expires: 1971-07-28
Abstract
No abstract record available.
Inventors
- 👤 William H Shields
- 👤 Joseph A Piepmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:05
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/02; D06L1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
THE METHOD OF DRYING CLEANING FABRICS WHICH ARE WEATHERPROOF OR TO BE WEATHERPROOF WITHOUT IMPAIRING THE WATER REPELLENCY THEREOF, SAID METHOD COMPRISING, CLEANING THE FABRICS IN A MIXTURE OF A DRY CLEANING SOLVENT OF THE CLASS CONSISTING OF NAPHTHA, CARBON TETRACHLORIDE, TRICHLORETHYLENE AND PERCHLORETHYLENE AND A SURFACE ACTIVE DRY CLEANING DETERGENT OF THE CLASS CONSISTING OF MAHOGANY SULFONATES, THE SOAPS FORMED BY LAURIC, PALMATIC, OLEIC AND STEARIC ACIDS WITH ALKALI AND ALKALINE EARTH, HYDROXIDES, AMMONIUM, AMINES AND ALKANOLAMINES, SULFATED AND SULPHONATED FATTY OILS AND THEIR SALTS, SULFATED FATTY ALCOHOLS AND ALKYLARYL SULPHONATES, AND FURTHER TREATING SAID FABRIC WITH A DRY CLEANING SOLVENT OF THE TYPE SPECIFIED WHICH CONTIANS A HEAT UNSTABLE COMPOUND WHICH INCLUDES A METAL OF THE GROUP CONSISTING OF ALUMINUM, ZINC, ZIRCONIUM, COBALT AND LEAD.
Claim 2
Independent Claim
127 words
THE METHOD OF DRYING CLEANING FABRICS WHICH ARE WEATHERPROOF OR TO BE WEATHERPROOF WITHOUT IMPAIRING THE WATER REPELLENCY THEREOF, SAID METHOD COMPRISING, CLEANING THE FABRICS IN A MIXTURE OF A DRY CLEANING SOLVENT OF THE CLASS CONSISTING OF NAPHTHA, CARBON TETRACHLORIDE, TRICHLORETHYLENE AND PERCHLORETHYLENE AND A SURFACE ACTIVE DRY CLEANING DETERGENT OF THE CLASS CONSISTING OF MAHOGANY SULFONATES, THE SOAPS FORMED BY LAURIC, PALMATIC, OLEIC AND STEARIC ACIDS WITH ALKALI AND ALKALINE EARTH, HYDROXIDES, AMMONIUM, AMINES AND ALKANOLAMINES, SULFATED AND SULPHONATED FATTY OILS AND THEIR SALTS, SULFATED FATTY ALCOHOLS AND ALKYLARYL SULPHONATES, AND FURTHER TREATING SAID FABRIC WITH A DRY CLEANING SOLVENT OF THE TYPE SPECIFIED WHICH CONTIANS A HEAT UNSTABLE COMPOUND WHICH INCLUDES A METAL OF THE GROUP CONSISTING OF ALUMINUM, ZINC, ZIRCONIUM, COBALT AND LEAD.
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) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |