Patent US3352807A successfully refreshed from Google Patents.
US3352807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing stable unoxidized polyethylene emulsions
Assignee: Gulf Oil Corp
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Filing: 1965-04-19
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Granted: 1967-11-14
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Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Helin
- 👤 Gerald J Mantell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:19
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
43 words
AN AQUEOUS EMULSION CONTAINING UNOXIDIZED POLYETHYLENE PARTICLES HAVING AN INHERENT VISCOSITY OF AT LEAST 0.40 WITH SAID PARTICLES HAVING ASSOCIATED THEREON AN EMULSIFIER COMPRISING AT LEAST 50 WEIGHT PERCENT OF AN ALKALI METAL SALT OF AN A-C SUBSTITUTED ALKYLARYL SULFONATE HAVING THE STRUCTURE
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) | 1970-11-13 | 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 |