US3634338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for cleaning aluminum magnesiumand alloys thereof
Assignee: WR Grace and Co
•
Filing: 1970-07-10
•
Granted: 1972-01-11
•
Expires: 1990-07-10
Abstract
Abstract THE INVENTION DISCLOSED IS FOR A METHOD AND COMPOSITION FOR CLEANING ALUMINUM, MAGNESIUM, AND ALLOYS THEREOF BY USING A STABLE FORMED OF PARTICULAR AMOUNTS OF WATER, LIQUID AROMATIC HYDROCARBON, FATTY ACYL SARCOSINE OR SALT THEREOF, ALKALI METAL PYROPHOSPHATE, LINEAR ALKYL BENZENE SULFONATE, TERPENE, AND OPTIONALLY A COUPLING AGENT.
Inventors
- 👤 Millard J Laugle
- 👤 William J Corbett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:00
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/044; C11D1/00; C11D1/02; C11D1/37; C11D3/0005; C11D3/0047; C11D3/06; C11D3/16; C11D3/18; C11D3/43; C23; C23G; C23G5/00; C23G5/06; C11D1/04; C11D1/10; C11D1/12; C11D1/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |