US3402075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic washing
Assignee: Lever Brothers Co
•
Filing: 1963-04-08
•
Granted: 1968-09-17
•
Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 Goldwasser Seymore
- 👤 Jr Carl W Haefele
- 👤 Padden Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:28
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/44; A47L15/0002; A47L15/0007; B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B3/12; C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/66; C11D1/72; A47L2601/00; A47L2601/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A METHOD OF CLEANING SOILD HOUSEHOLD DISHES COMPRISING PREPARING A SOLUTION CONSISTING ESSENTIALLY OF WATER AND AN CLEANING AGENT EFFECTIVE AT A WATER TEMPERATURE OF 100*F. TO 125*F. AND IN THE PRESENCE OF DISSOLVED AIR IN SAID WATER, SAID AGENT BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND AMMONIUM STRAIGHT CHAIN ALKANE SULFONATES, ALKALI METAL, AMMONIUM AND ALKALINE EARTH METAL ALKYLARYL SULFONATES HAVING FROM 1 TO 3 ALKYL GROUPS, SAID ALKYL GROUPS TOGETHER CONTAINING FROM 1 TO 3 CARBON ATOMS, AND ETHYLENE OXIDE ACID CONDENSATES CONTAINING 8 TO 20 MOLES OF ETHYLENE OXIDE PER MOLE OF ACID, SAID ACID BEING SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS AND ROSIN ACIDS, IMMERISING SAID SOILED ARTICLE IN SAID SOLUTION WHILE IT IS AT A TEMPERATURE OF NOT MORE THAN ABOUT 125*F., AND ENERGIZING SAID SOLUTION WITH ULTRASONIC ENERGY.
Claim 2
Independent Claim
139 words
A METHOD OF CLEANING SOILD HOUSEHOLD DISHES COMPRISING PREPARING A SOLUTION CONSISTING ESSENTIALLY OF WATER AND AN CLEANING AGENT EFFECTIVE AT A WATER TEMPERATURE OF 100*F. TO 125*F. AND IN THE PRESENCE OF DISSOLVED AIR IN SAID WATER, SAID AGENT BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND AMMONIUM STRAIGHT CHAIN ALKANE SULFONATES, ALKALI METAL, AMMONIUM AND ALKALINE EARTH METAL ALKYLARYL SULFONATES HAVING FROM 1 TO 3 ALKYL GROUPS, SAID ALKYL GROUPS TOGETHER CONTAINING FROM 1 TO 3 CARBON ATOMS, AND ETHYLENE OXIDE ACID CONDENSATES CONTAINING 8 TO 20 MOLES OF ETHYLENE OXIDE PER MOLE OF ACID, SAID ACID BEING SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS AND ROSIN ACIDS, IMMERISING SAID SOILED ARTICLE IN SAID SOLUTION WHILE IT IS AT A TEMPERATURE OF NOT MORE THAN ABOUT 125*F., AND ENERGIZING SAID SOLUTION WITH ULTRASONIC ENERGY.
References Cited (Backward Citations)
US3037937A
Cited
US2987426A
Cited
US2924542A
Cited
US2961354A
Cited
US3050422A
Cited
US3123553A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |