US3579455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine dishwashing compositions containing sodium polyacrylate
Assignee: WR Grace and Co
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Filing: 1968-08-02
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Granted: 1971-05-18
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Expires: 1988-08-02
Abstract
Abstract A MACHINE DISHWSHING COMPOSITION IS DISCLOSED WHICH INCLUDES ALKALI METAL CARBONATE, A TETRA-ALKALI METAL PYROPHOSPHATE, AN ALKALI METAL HEXAMETAPHOSPHATE, A WATERSOLUBLE SALT OF POLYARCYLIC ACID, AND AN ALKALI METAL METASILICATE. COOKING AND EATING UTENSILS MAY BE CLEANED BY A LOW FOAMING AQUEOUS SOLUTION OF THE PRESENT MACHINE DISHWASHING COMPOSITION WITH LESS SPOTTING AND GREATER CLARITY.
Inventors
- 👤 Philip M Sabatelli
- 👤 Charles A Brungs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:03
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/0005; C11D3/0026; C11D7/00; C11D7/02; C11D7/04; C11D7/10; C11D7/12; C11D7/14; C11D7/16
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) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |