Patent US2698309A successfully refreshed from Google Patents.
US2698309A
Expired / Lapsed
US
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Paper coating wax
Assignee: Standard Oil Development Co
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Filing: 1952-04-16
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Granted: 1954-12-28
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Expires: 1972-04-16
Abstract
No abstract record available.
Inventors
- 👤 Herman L Thwaites
- 👤 Harold F Hitchcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:32
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; C; C09; C09D; C09D191/00; C09D191/06; C09D191/08; D21H19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A WAX COMPOSITION COMPRISING PARAFFIN WAX CONTAINING FROM 0.5 TO 10% BY WEIGHT OF A MIXTURE OF POLYETHYLENE AND 40 TO 60% BY WEIGHT BASED ON TOTAL POLYMER OF POLYETHYLENE HAVING A TERMINAL HYDROXYL GROUP, SAID HYDROXYLATED POLYETHYLENE BEING PRODUCED BY POLYMERIZING ETHYLENE UNDER 425-475 ATMOSPHERES AT TEMPERATURES BETWEEN 140* AND 200* C. IN THE PRESENCE OF ISOPROPANOL AND HYDROGEN PEROXIDE.
Claim 2
Dependent Claim
61 words
A WAX COMPOSITION COMPRISING PARAFFIN WAX CONTAINING FROM 0.5 TO 10% BY WEIGHT OF A MIXTURE OF POLYETHYLENE AND 40 TO 60% BY WEIGHT BASED ON TOTAL POLYMER OF POLYETHYLENE HAVING A TERMINAL HYDROXYL GROUP, SAID HYDROXYLATED POLYETHYLENE BEING PRODUCED BY POLYMERIZING ETHYLENE UNDER 425-475 ATMOSPHERES AT TEMPERATURES BETWEEN 140* AND 200* C. IN THE PRESENCE OF ISOPROPANOL AND HYDROGEN PEROXIDE.
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) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |