Patent US3352787A successfully refreshed from Google Patents.
US3352787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhibition of plastic crazing
Assignee: WR Grace and Co
•
Filing: 1963-12-11
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Granted: 1967-11-14
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Expires: 1983-12-11
Abstract
No abstract record available.
Inventors
- 👤 Charles M Bodach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:21
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/72; C11D1/83; C11D1/835; C11D1/02; C11D1/12; C11D1/14; C11D1/22; C11D1/30; C11D1/38; C11D1/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THE METHOD OF WASHING A STRESSED ARCYLIC BASE SHEET WHICH COMPRISES APPLYING THERETO AN AQUEOUS SOLUTION OF A POLYETHOXYLANTED NON-IONIC SURFACTANT WHICH NORMALLY EXHIBITS CRAZING PROPERTIES WHEN APPLIED TO STRESSED ACRYLIC BASE SHEETS AND FROM 1/20 TO 5 TIMES THE WEIGHT OF THE NONIONIC SURFACTANT, OF A WATER-SOLUBLE IONIC SURFACTANT SELECTED FROM THE GROUP CONSISTING OF ALKYL BENZENE SULFONATES HAVING FROM 6 TO 20 CARBONS IN THE ALKYL GROUP, XYLENE SULFONATE, LIGOSULFONATES, TALL OIL SALTS, PETROLEUM SULFONATES, LAURLY ALCOHOL SULFATE, AND DIISOBUTYL PHENOXY ETHOXY DIMETHYL BENZYL AMMONIUN CHLORIDE.
Claim 2
Independent Claim
88 words
THE METHOD OF WASHING A STRESSED ARCYLIC BASE SHEET WHICH COMPRISES APPLYING THERETO AN AQUEOUS SOLUTION OF A POLYETHOXYLANTED NON-IONIC SURFACTANT WHICH NORMALLY EXHIBITS CRAZING PROPERTIES WHEN APPLIED TO STRESSED ACRYLIC BASE SHEETS AND FROM 1/20 TO 5 TIMES THE WEIGHT OF THE NONIONIC SURFACTANT, OF A WATER-SOLUBLE IONIC SURFACTANT SELECTED FROM THE GROUP CONSISTING OF ALKYL BENZENE SULFONATES HAVING FROM 6 TO 20 CARBONS IN THE ALKYL GROUP, XYLENE SULFONATE, LIGOSULFONATES, TALL OIL SALTS, PETROLEUM SULFONATES, LAURLY ALCOHOL SULFATE, AND DIISOBUTYL PHENOXY ETHOXY DIMETHYL BENZYL AMMONIUN CHLORIDE.
References Cited (Backward Citations)
CA654005A
Cited
US2292097A
Cited
US2353978A
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US2372171A
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US2726962A
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GB808805A
Cited
US2878188A
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US2948625A
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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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |