Patent US2912350A successfully refreshed from Google Patents.
US2912350A
Expired / Lapsed
US
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Latices and fabrics therefrom
Assignee: Wood Conversion Co
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Filing: 1956-08-28
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Granted: 1959-11-10
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Expires: 1976-08-28
Abstract
No abstract record available.
Inventors
- 👤 Otis R Videen
- 👤 Frederick S Bergstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:53
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/693; C; C08; C08C; C08C1/00; C08C1/02; C08F; C08F6/00; C08F6/14; C08F6/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
THE METHOD COMPRISING NEUTRALIZING A PORTION OF THE IONIC SURFACTANT IN A CORRESPONDINGLY IONICALLY ACTIVE AQUEOUS LATEX DISPERSION OF RUBBERY FILM-FORMING SOLIDS WHICH IS RESISTANT TO COAGULATION AT BELOW A PREDETERMINED TEMPERATURE AND WHICH IS STABILIZED AGAINST SUCH COAGULATION BY THE PRESENCE OF NONIONIC SURFACTANT AND SAID IONIC SURFACTANT, SAID NEUTRALIZING BEING EFFECTED BY ADDING IONIC SURFACTANT OF THE OPPOSITE IONIC TYPE, THE AMOUNT OF ADDED NEUTRALIZING SURFACTANT BEING LESS THAN THE QUANTITY THEREOF WHICH COUNTERACTS THE STABILIZING CONTRIBUTION OF SAID FIRST-MENTIONED IONIC SURFACTANT, WHEREBY TO RENDER THE RESULTING DISPERSION COAGULABLE BY HEAT AT BELOW SAID, PREDETERMINED TEMPERATURE, INCREASED AMOUNT OF SAID NEUTRALIZING SURFACTANT BEING EFFECTIVE TO LOWER THE TEMPERATURE AT WHICH COAGULATION IS EFFECTED.
Claim 2
Independent Claim
115 words
THE METHOD COMPRISING NEUTRALIZING A PORTION OF THE IONIC SURFACTANT IN A CORRESPONDINGLY IONICALLY ACTIVE AQUEOUS LATEX DISPERSION OF RUBBERY FILM-FORMING SOLIDS WHICH IS RESISTANT TO COAGULATION AT BELOW A PREDETERMINED TEMPERATURE AND WHICH IS STABILIZED AGAINST SUCH COAGULATION BY THE PRESENCE OF NONIONIC SURFACTANT AND SAID IONIC SURFACTANT, SAID NEUTRALIZING BEING EFFECTED BY ADDING IONIC SURFACTANT OF THE OPPOSITE IONIC TYPE, THE AMOUNT OF ADDED NEUTRALIZING SURFACTANT BEING LESS THAN THE QUANTITY THEREOF WHICH COUNTERACTS THE STABILIZING CONTRIBUTION OF SAID FIRST-MENTIONED IONIC SURFACTANT, WHEREBY TO RENDER THE RESULTING DISPERSION COAGULABLE BY HEAT AT BELOW SAID, PREDETERMINED TEMPERATURE, INCREASED AMOUNT OF SAID NEUTRALIZING SURFACTANT BEING EFFECTIVE TO LOWER THE TEMPERATURE AT WHICH COAGULATION IS EFFECTED.
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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) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |