US3202612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for bright polishing aluminum
Assignee: Monsanto Co
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Filing: 1960-12-05
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Granted: 1965-08-24
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Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 George D Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:50
CPC Classifications
C; C23; C23F; C23F3/00; C23F3/02; C23F3/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A COMPOSITION, SUITABLE FOR BRIGHTENING THE SURFACES OF ALUMINUM AND ALUMINUM ALLOYS, WHICH COMPRISES FROM ABOUT 45 TO ABOUT 90 WEIGHT PERCENT OF PHOSPHORIC ACID FROM ABOUT 1 TO ABOUT 10 WEIGHT PERCENT OF NITRIC ACID, FROM ABOUT 2 TO ABOUT 35 WEIGHT PERCENT OF WATER, FROM ABOUT 0.004 TO ABOUT 0.04 WEIGHT PERCENT OF DISSOLVED COPPER, AN AMMONIUM SALT IN AN AMOUNT SUFFICIENT TO PRODUCE IN SAID COMPOSITION FROM ABOUT 0.15 TO ABOUT 4 WEIGHT PERCENT OF AMMONIUM IONS, AND FROM ABOUT 1 TO ABOUT 8 WEIGHT PERCENT OF AN ORGANIC SATURATED ALIPHATIC ACID HAVING IN ITS MOLECULE BETWEEN ABOUT 1.5 AND ABOUT 4.5 CARBON ATOMS PER ACID GROUP.
Claim 2
Dependent Claim
110 words
A COMPOSITION, SUITABLE FOR BRIGHTENING THE SURFACES OF ALUMINUM AND ALUMINUM ALLOYS, WHICH COMPRISES FROM ABOUT 45 TO ABOUT 90 WEIGHT PERCENT OF PHOSPHORIC ACID FROM ABOUT 1 TO ABOUT 10 WEIGHT PERCENT OF NITRIC ACID, FROM ABOUT 2 TO ABOUT 35 WEIGHT PERCENT OF WATER, FROM ABOUT 0.004 TO ABOUT 0.04 WEIGHT PERCENT OF DISSOLVED COPPER, AN AMMONIUM SALT IN AN AMOUNT SUFFICIENT TO PRODUCE IN SAID COMPOSITION FROM ABOUT 0.15 TO ABOUT 4 WEIGHT PERCENT OF AMMONIUM IONS, AND FROM ABOUT 1 TO ABOUT 8 WEIGHT PERCENT OF AN ORGANIC SATURATED ALIPHATIC ACID HAVING IN ITS MOLECULE BETWEEN ABOUT 1.5 AND ABOUT 4.5 CARBON ATOMS PER ACID GROUP.
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |