Patent US2995906A successfully refreshed from Google Patents.
Patent US3074836A successfully refreshed from Google Patents.
US3074836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baths for one-stage quick etches
Assignee: Ball Corp
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Filing: 1956-07-11
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Granted: 1963-01-22
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Expires: 1976-07-11
Abstract
No abstract record available.
Inventors
- 👤 Sherer Abraham Isidor
- 👤 Ruzicka John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:57
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/10; C23F1/14; C23F1/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
60 words
A BATH SOLUTION FOR A ONE-STAGE QUICK ETCH ON AN ALLOY COMPRISING BY WEIGHT 3 TO 20 PARTS NITRIC ACID, 1 TO 12 PARTS OF A PETROLEUM SOLVENT, 0.2 TO 2.0 PARTS LONG CHAIN ALKYL ARYL SULPHONATE AND 0.00008 TO 2.0 PARTS ALKYL ARYL SUPHONATE HAVING A CHAIN LENGTH OF ABOUT 3 TO 12 CARBON ATOMS, AND THE REMAINDER WATER.
Claim 2
Dependent Claim
60 words
A BATH SOLUTION FOR A ONE-STAGE QUICK ETCH ON AN ALLOY COMPRISING BY WEIGHT 3 TO 20 PARTS NITRIC ACID, 1 TO 12 PARTS OF A PETROLEUM SOLVENT, 0.2 TO 2.0 PARTS LONG CHAIN ALKYL ARYL SULPHONATE AND 0.00008 TO 2.0 PARTS ALKYL ARYL SUPHONATE HAVING A CHAIN LENGTH OF ABOUT 3 TO 12 CARBON ATOMS, AND THE REMAINDER WATER.
Claim 3
Dependent Claim
124 words
THE PROCESS OF ETCHING A DEVICE COMPOSED OF METALS SELECTED FORM THE GROUP CONSISTING OF ZINC, MAGNESIUM; ZINC BASE ALLOYS AND MAGNESIUM BASE ALLOYS CONSISTING IN SAID DEVICE HAVING PORTIONS OF ITS SURFACE COVERED WITH AN ACID RESISTING COATING TO DEFINE A DESIGN AND APPLYING AN ETCHING MIXTURE TO THE REMAINING EXPOSED OR UNPROTECTED FACES OF THE DEVICE WITH AN ETCHING MIXTURE OF BETWEEN 3 TO 20 PARTS BY WEIGHT OF NITRIC ACID, OF BETWEEN 1 TO 12 PARTS BY WEIGHT OF A PETROLEUM SOLVENT, SURFACE ACTIVE AGENTS CONSISTING OF BETWEEN 0.02 TO 2.0 PARTS BY WEIGHT OF AN OIL SOLUBLE ALKYL ARYL SULPHONATE AND, OF BETWEEN 0.00008 TO 2.0 PARTS BY WEIGHT OF AN ESSENTIALLY WATER SOLUBLE WETTING AGENT, AND THE REMAINDER WATER.
Claim 4
Dependent Claim
124 words
THE PROCESS OF ETCHING A DEVICE COMPOSED OF METALS SELECTED FORM THE GROUP CONSISTING OF ZINC, MAGNESIUM; ZINC BASE ALLOYS AND MAGNESIUM BASE ALLOYS CONSISTING IN SAID DEVICE HAVING PORTIONS OF ITS SURFACE COVERED WITH AN ACID RESISTING COATING TO DEFINE A DESIGN AND APPLYING AN ETCHING MIXTURE TO THE REMAINING EXPOSED OR UNPROTECTED FACES OF THE DEVICE WITH AN ETCHING MIXTURE OF BETWEEN 3 TO 20 PARTS BY WEIGHT OF NITRIC ACID, OF BETWEEN 1 TO 12 PARTS BY WEIGHT OF A PETROLEUM SOLVENT, SURFACE ACTIVE AGENTS CONSISTING OF BETWEEN 0.02 TO 2.0 PARTS BY WEIGHT OF AN OIL SOLUBLE ALKYL ARYL SULPHONATE AND, OF BETWEEN 0.00008 TO 2.0 PARTS BY WEIGHT OF AN ESSENTIALLY WATER SOLUBLE WETTING AGENT, AND THE REMAINDER WATER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |