Patent US3549258A successfully refreshed from Google Patents.
Patent US3775330A successfully refreshed from Google Patents.
US3775330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and agents for the clear-rinse in mechanical dishwashing
Assignee: Henkel AG and Co KGaA
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Filing: 1971-12-07
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Granted: 1973-11-27
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Expires: 1991-12-07
Abstract
Abstract PROCESS FOR RINSING OF DISHES IN DISHWASHING MACHINES HAVING ONE OR SEVERAL CLEAR-RINSING CYCLES USING AN AQUEOUS SOLUTION OF AN ADDUCT OF FROM 5 TO 20 MOLS OF ETHYLENE OXIDE AND FROM 1 TO 10 MOLS OF PROPYLENE OXIDE TO ALKANEDIOLS WITH A LINEAR ALKANE CHAIN OF FROM 10 TO 20 CARBON ATOMS AND HAVING VICINAL, NON-TERMINAL HYDROXYLS, AS WELL AS CLEAR-RINSING AGENT COMPOSITIONS FOR USE IN THE PROCESS.
Inventors
- 👤 H Batka
- 👤 T Altenschoepfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:29
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/722
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |