US3257326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized chlorohydrocarbon solvent composition
Assignee: EIDP Inc
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Filing: 1963-04-10
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Granted: 1966-06-21
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Expires: 1983-04-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Lawrence Fullhart
- 👤 Donald A Swalheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:11
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02854; C23G5/02883; C23G5/02887; C07; C07C; C07C17/00; C07C17/38; C07C17/42; C23C; C23C22/00; C23C22/02; C23C22/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A CHLOROHYDROCARBON SOLVENT COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 99% TO ABOUT 60% BY WEIGHT OF A CHLOROHYDROCARBON SELECTED FROM THE GROUP CONSISTING OF TRICHLOROETHYLENE AND PERCHLOROETHYLENE; FROM ABOUT 1% TO ABOUT 40% BY WEIGHT OF AT LEAST ONE OXYGEN-CONTAINING SOLVENT FROM THE GROUP CONSISTING OF ALCOHOLS CONTAINING FROM 3 TO 8 CARBON ATOMS AND ACID PHOSPHATE ESTERS DERIVED BY REACTING PHOSPHORIC ACID WITH SUCH ALCOHOLS; AND A STABILIZING AMOUNT OF AT LEAST ONE NITRO AROMATIC COMPOUND, WHICH COMPOUND CONTAINS AT LEAST TWO NITRO GROUPS OF THE TYPE WHICH ARE BONDED DIRECTLY TO AN AROMATIC NUCLEUS; THE SUM OF THE FOREGOING CONSTITUENTS AMOUNTING TO AT LEAST 98% BY WEIGHT OF THE TOTAL COMPOSITION.
Claim 2
Dependent Claim
113 words
A CHLOROHYDROCARBON SOLVENT COMPOSITION CONSISTING ESSENTIALLY OF FROM ABOUT 99% TO ABOUT 60% BY WEIGHT OF A CHLOROHYDROCARBON SELECTED FROM THE GROUP CONSISTING OF TRICHLOROETHYLENE AND PERCHLOROETHYLENE; FROM ABOUT 1% TO ABOUT 40% BY WEIGHT OF AT LEAST ONE OXYGEN-CONTAINING SOLVENT FROM THE GROUP CONSISTING OF ALCOHOLS CONTAINING FROM 3 TO 8 CARBON ATOMS AND ACID PHOSPHATE ESTERS DERIVED BY REACTING PHOSPHORIC ACID WITH SUCH ALCOHOLS; AND A STABILIZING AMOUNT OF AT LEAST ONE NITRO AROMATIC COMPOUND, WHICH COMPOUND CONTAINS AT LEAST TWO NITRO GROUPS OF THE TYPE WHICH ARE BONDED DIRECTLY TO AN AROMATIC NUCLEUS; THE SUM OF THE FOREGOING CONSTITUENTS AMOUNTING TO 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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |