US2952649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsifiable self-polishing wax containing oxidized polyethylene and paraffin and process for preparing same
Assignee: Eastman Kodak Co
•
Filing: 1955-07-07
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Granted: 1960-09-13
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Expires: 1975-07-07
Abstract
No abstract record available.
Inventors
- 👤 Marvin A Mccall
- 👤 Jr Harry W Coover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:11
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
AN EMULSIFIABLE SELF-POLISHING WAX CONSISTING OF A MIXTURE CONTAINING FROM 70 TO 95% POLYETHYLENE HAVING A MOLECULAR WEIGHT BETWEEN 2,500 AND 6,000 WITH 30 TO 5% PARAFFIN WAX, THE MIXTURE HAVING BEEN OXIDIZED WITH OXYGEN AT A TEMPERATURE OF BETWEEN 120 TO 140*C. TO AN ACID NUMBER OF 5 TO 20.
Claim 2
Dependent Claim
51 words
AN EMULSIFIABLE SELF-POLISHING WAX CONSISTING OF A MIXTURE CONTAINING FROM 70 TO 95% POLYETHYLENE HAVING A MOLECULAR WEIGHT BETWEEN 2,500 AND 6,000 WITH 30 TO 5% PARAFFIN WAX, THE MIXTURE HAVING BEEN OXIDIZED WITH OXYGEN AT A TEMPERATURE OF BETWEEN 120 TO 140*C. TO AN ACID NUMBER OF 5 TO 20.
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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) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |