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Patent US3085035A successfully refreshed from Google Patents.
US3085035A
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Composition and method for cleaning and blackening metal dies
Assignee: Motors Liquidation Co
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Filing: 1960-06-20
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Granted: 1963-04-09
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Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 Frank L Ireland
- 👤 Jr Leo C Mangett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:17
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/60; C23C22/62; C23G; C23G1/00; C23G1/14; C23G1/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A SOLUTION FOR REMOVING ADHERENT DEPOSITS FROM SURFACES OF STEEL DIES, SAID SOLUTION COMPRISING ABOUT 5% TO 45% BY WEIGHT OF BLACKENING SALTS, 1% TO 20% BY WIEGHT OF A WATER-SOLUBLE FURAN COMPOUND AND THE BALANCE SUBSTANTIALLY ALL WATER, SAID BLACKENING SALTS COMPRISING APPROXIMATELY 4% TO 30% BY WEIGHT OF SODIUM NITRATE, 1% TO 20% BY WEIGHT OF SODIUM NITRITE AND THE BALANCE SUSTANTIALLY ALL SODIUM HYDROXIDE.
Claim 2
Dependent Claim
67 words
A SOLUTION FOR REMOVING ADHERENT DEPOSITS FROM SURFACES OF STEEL DIES, SAID SOLUTION COMPRISING ABOUT 5% TO 45% BY WEIGHT OF BLACKENING SALTS, 1% TO 20% BY WIEGHT OF A WATER-SOLUBLE FURAN COMPOUND AND THE BALANCE SUBSTANTIALLY ALL WATER, SAID BLACKENING SALTS COMPRISING APPROXIMATELY 4% TO 30% BY WEIGHT OF SODIUM NITRATE, 1% TO 20% BY WEIGHT OF SODIUM NITRITE AND THE BALANCE SUSTANTIALLY ALL SODIUM HYDROXIDE.
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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |