Patent US3306785A successfully refreshed from Google Patents.
US3306785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphatizing compositions and processes
Assignee: EIDP Inc
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Filing: 1963-06-04
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Granted: 1967-02-28
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Expires: 1983-06-04
Abstract
No abstract record available.
Inventors
- 👤 John B Hitchcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:41
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/02; C23C22/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
AN ANHYDROUS AND SUBSTANTIALLY HOMOGENOUS LIQUID COMPOSITION COMPRISING AS THE PREDOMINANT INGREDIENT A CHLORHYDROCARBON SOLVENT FROM THE GROUP CONSISTING OF TRICHLORETHYLENE AND PERCHLORETHYLENE; FROM ABOUT 1% TO ABOUT 10% BY WEIGHT OF AN OXYGEN-CONTAINING SOLVENT CONSISTING ESSENTIALLY OF AT LEAST ONE MEMBER FROM THE GROUP CONSISTING OF ALCOHOL COMPOUNDS CONTAINING FROM 3 TO 8 CARBON ATOMS INCLUSIVE AND ACID ALKYL PHOSPHATES HAVING AT LEAST ONE ALKYL GROUP CONTAINING FROM 3 TO 8 CARBON ATOMS INCLUSIVE; FROM ABOUT 0.001% TO ABOUT 1% BY WEIGHT OF ZINC IN THE FORM OF A SUBSTANTIALLY SOLUBILIZED DIVALENT ZINC COMPOUND; AND FROM ABOUT 0.05% TO ABOUT 5% BY WEIGHT OF A PHOSPHATIZING PHOSPHATE COMPOUND; THE FOREGOING INGREDIENT CONSTITUTING AT LEAST 98% BY WEIGHT OF THE TOTAL COMPOSITION.
Claim 2
Dependent Claim
122 words
AN ANHYDROUS AND SUBSTANTIALLY HOMOGENOUS LIQUID COMPOSITION COMPRISING AS THE PREDOMINANT INGREDIENT A CHLORHYDROCARBON SOLVENT FROM THE GROUP CONSISTING OF TRICHLORETHYLENE AND PERCHLORETHYLENE; FROM ABOUT 1% TO ABOUT 10% BY WEIGHT OF AN OXYGEN-CONTAINING SOLVENT CONSISTING ESSENTIALLY OF AT LEAST ONE MEMBER FROM THE GROUP CONSISTING OF ALCOHOL COMPOUNDS CONTAINING FROM 3 TO 8 CARBON ATOMS INCLUSIVE AND ACID ALKYL PHOSPHATES HAVING AT LEAST ONE ALKYL GROUP CONTAINING FROM 3 TO 8 CARBON ATOMS INCLUSIVE; FROM ABOUT 0.001% TO ABOUT 1% BY WEIGHT OF ZINC IN THE FORM OF A SUBSTANTIALLY SOLUBILIZED DIVALENT ZINC COMPOUND; AND FROM ABOUT 0.05% TO ABOUT 5% BY WEIGHT OF A PHOSPHATIZING PHOSPHATE COMPOUND; THE FOREGOING INGREDIENT CONSTITUTING AT LEAST 98% BY WEIGHT OF THE TOTAL COMPOSITION.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |