Patent US3328308A successfully refreshed from Google Patents.
US3328308A
Expired / Lapsed
US
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Laundering process and composition
Assignee: Ael Products Inc
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Filing: 1965-09-03
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Granted: 1967-06-27
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Expires: 1985-09-03
Abstract
No abstract record available.
Inventors
- 👤 Franklin H Mackenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:07
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/02; C11D7/04; C11D7/10; C11D7/14; C11D7/06; C11D7/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
IN A LAUNDERING PROCESS, THE STEP WHICH COMPRISES SUBJECTING SOILED MATERIAL TO AN AQUEOUS SOLUTION TO WHICH HAS BEEN ADDED AN AQUEOUS CONCENTRATE COMPRISING AN AMOUNT OF SODIUM HYDROXIDE, SODIUM SILICATE, AND GLASSY SODIUM PHOSPHATE EQUIVALENT TO THE FOLLOWING CONCENTRATIONS PER 100 GALLONS OF SOLUTION; BETWEEN ABOUT 4 TO 19 GALLONS OF 50 WEIGHT PERCENT SODIUM HYDROXIDE, AND ABOUT 1 TO 16 GALLONS OF 41* BAUME LIQUID SODIUM SILICATE, WITH THE TOTAL AMOUNT OF SUCH 50 WEIGHT PERCENT SODIUM HYDROXIDE AND SUCH 41* BAUME SODIUM SILICATE EQUALING NOT MORE THAN 20 GALLONS, AND, ON THE BASIS OF SAID 100 GALLONS OF SOLUTION, BETWEEN ABOUT 4 TO 40 POUNDS OF GLASSY SODIUM PHOSPHATE; THE AMOUNT OF SAID CONCENTRATE IN SAID AQUEOUS SOLUTION TO WHICH THE SOILED MATERIAL IS SUBJECTED PROVIDING AN AMOUNT OF GLASSY SODIUM PHOSPHATE CAPABLE OF SEQUESTERING ABOUT 100 TO 1000 PARTS PER MILLION OF HARDNESS (CALCULATED AS CACO3), IN EXCESS OF THE AMOUNT OF SAID PHOSPHATE REQUIRED TO PROVIDE ZERO HARDNESS IN SAID AQUEOUS SOLUTION, CONSIDERING THE HARDNESS INHERENTLY PRESENT IN THE WATER, THE OTHER COMPONENTS OF THE LAUNDERING SOLUTION AND THE HARDNESS DERIVED FROM THE SOILED MATERIAL.
Claim 2
Dependent Claim
190 words
IN A LAUNDERING PROCESS, THE STEP WHICH COMPRISES SUBJECTING SOILED MATERIAL TO AN AQUEOUS SOLUTION TO WHICH HAS BEEN ADDED AN AQUEOUS CONCENTRATE COMPRISING AN AMOUNT OF SODIUM HYDROXIDE, SODIUM SILICATE, AND GLASSY SODIUM PHOSPHATE EQUIVALENT TO THE FOLLOWING CONCENTRATIONS PER 100 GALLONS OF SOLUTION; BETWEEN ABOUT 4 TO 19 GALLONS OF 50 WEIGHT PERCENT SODIUM HYDROXIDE, AND ABOUT 1 TO 16 GALLONS OF 41* BAUME LIQUID SODIUM SILICATE, WITH THE TOTAL AMOUNT OF SUCH 50 WEIGHT PERCENT SODIUM HYDROXIDE AND SUCH 41* BAUME SODIUM SILICATE EQUALING NOT MORE THAN 20 GALLONS, AND, ON THE BASIS OF SAID 100 GALLONS OF SOLUTION, BETWEEN ABOUT 4 TO 40 POUNDS OF GLASSY SODIUM PHOSPHATE; THE AMOUNT OF SAID CONCENTRATE IN SAID AQUEOUS SOLUTION TO WHICH THE SOILED MATERIAL IS SUBJECTED PROVIDING AN AMOUNT OF GLASSY SODIUM PHOSPHATE CAPABLE OF SEQUESTERING ABOUT 100 TO 1000 PARTS PER MILLION OF HARDNESS (CALCULATED AS CACO3), IN EXCESS OF THE AMOUNT OF SAID PHOSPHATE REQUIRED TO PROVIDE ZERO HARDNESS IN SAID AQUEOUS SOLUTION, CONSIDERING THE HARDNESS INHERENTLY PRESENT IN THE WATER, THE OTHER COMPONENTS OF THE LAUNDERING SOLUTION AND THE HARDNESS DERIVED FROM THE SOILED MATERIAL.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |