US2776904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethyl cellulose emulsions
Assignee: Hercules Powder Co
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Filing: 1953-02-06
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Granted: 1957-01-08
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Expires: 1973-02-06
Abstract
No abstract record available.
Inventors
- 👤 Werner C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:17
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C09D101/26; C09D101/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
THE METHOD OF PRODUCING AN IMPROVED ETHYL CELLULOSE LACQUER EMULSION WHEREIN THE ETHYLK CELLULOSE IS DISSOLVED IN A WATER-IMMISCIBLE LIQUID WHICH COMPRISES AGITATING WATER AND SAID SOLUTION IN THE PRESENCE OF A MONIONIC SURFACE-ACTIVE AGENT WHICH IS AN ADDITION PRODUCT OF AN ALKYLENE OXIDE AS THE EMULSIFIER TO PRODUCE AN EMULSION CONTAINING THE ETHYL CELLULOSE IN THE DISPERSED PHASE.
Claim 2
Independent Claim
59 words
THE METHOD OF PRODUCING AN IMPROVED ETHYL CELLULOSE LACQUER EMULSION WHEREIN THE ETHYLK CELLULOSE IS DISSOLVED IN A WATER-IMMISCIBLE LIQUID WHICH COMPRISES AGITATING WATER AND SAID SOLUTION IN THE PRESENCE OF A MONIONIC SURFACE-ACTIVE AGENT WHICH IS AN ADDITION PRODUCT OF AN ALKYLENE OXIDE AS THE EMULSIFIER TO PRODUCE AN EMULSION CONTAINING THE ETHYL CELLULOSE IN THE DISPERSED PHASE.
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) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |