US3009820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sizing composition
Assignee: Hercules Powder Co
•
Filing: 1959-12-04
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Granted: 1961-11-21
•
Expires: 1979-12-04
Abstract
No abstract record available.
Inventors
- 👤 Charles W Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:10
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/62; C; C11; C11D; C11D15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A SIZING COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS EMULSION CONTAINING HYDROCARBON WAX, TALL OIL PITCH, AND AN EMULSION STABILIZER, AT LEAST 50% OF THE ACIDITY OF THE TALL OIL PITCH HAVING BEEN NEUTRALIZED WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF POTASSIUM ALKALI AND MIXTURES OF POTASSIUM ALKALI WITH SODIUM ALKALI, AND THE RATIO OF TALL OIL PITCH TO WAX BEING WITHIN THE RANGE FROM ABOUT 60:40 TO ABOUT 40:60.
Claim 2
Dependent Claim
71 words
A SIZING COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS EMULSION CONTAINING HYDROCARBON WAX, TALL OIL PITCH, AND AN EMULSION STABILIZER, AT LEAST 50% OF THE ACIDITY OF THE TALL OIL PITCH HAVING BEEN NEUTRALIZED WITH A MATERIAL SELECTED FROM THE GROUP CONSISTING OF POTASSIUM ALKALI AND MIXTURES OF POTASSIUM ALKALI WITH SODIUM ALKALI, AND THE RATIO OF TALL OIL PITCH TO WAX BEING WITHIN THE RANGE FROM ABOUT 60:40 TO ABOUT 40:60.
References Cited (Backward Citations)
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Cited
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Cited
US2717241A
Cited
US2974106A
Cited
US2934468A
Cited
US2993800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |