US3009849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum brightening solution and method
Assignee: Conversion Chemical Corp
•
Filing: 1958-06-04
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Granted: 1961-11-21
•
Expires: 1978-06-04
Abstract
No abstract record available.
Inventors
- 👤 Kenneth P Bellinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:40
CPC Classifications
C; C23; C23F; C23F3/00; C23F3/02; C23F3/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A NON-FUMING SOLUTION FOR BRIGHTENING ALUMINUM AT A TEMPERATURE OF ABOUT 190-230*F. CONSISTING ESSENTIALLY OF APPROXIMATELY 85.0 PERCENT BY WEIGHT PHOSPHORIC ACID, APPROXIMATELY 2.0-5.0 PERCENT BY WEIGHT NITRIC ACID, AND WATER, AND CONTAINING ABOUT 0.05-3.0 PERCENT BY WEIGHT OF A FUME INHIBITING ADDITIVE SELECTED FROM THE GROUP CONSISTING OF CARBAMIDE, DICYANODIAMIDE, AND 2,4,6-TRIAMINO-S-TRIAZINE, AND COMBINATIONS THEREOF.
Claim 2
Dependent Claim
56 words
A NON-FUMING SOLUTION FOR BRIGHTENING ALUMINUM AT A TEMPERATURE OF ABOUT 190-230*F. CONSISTING ESSENTIALLY OF APPROXIMATELY 85.0 PERCENT BY WEIGHT PHOSPHORIC ACID, APPROXIMATELY 2.0-5.0 PERCENT BY WEIGHT NITRIC ACID, AND WATER, AND CONTAINING ABOUT 0.05-3.0 PERCENT BY WEIGHT OF A FUME INHIBITING ADDITIVE SELECTED FROM THE GROUP CONSISTING OF CARBAMIDE, DICYANODIAMIDE, AND 2,4,6-TRIAMINO-S-TRIAZINE, AND COMBINATIONS THEREOF.
References Cited (Backward Citations)
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Cited
GB458163A
Cited
US2132511A
Cited
US2177751A
Cited
US2446060A
Cited
US2650157A
Cited
US2729551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |