US3328330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinylidene chloride copolymer latices
Assignee: WR Grace and Co
•
Filing: 1964-03-09
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Granted: 1967-06-27
•
Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Trofimow Alex
- 👤 Bleyle Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:28
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/08; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
AN AQUEOUS DISPERSION OF A VINYLIDENE CHLORIDE COPOLYMER OF AT LEAST 80 WEIGHT PERCENT OF VINYLIDENE CHLORIDE MONOMER HAVING AN AVERAGE PARTICLE SIZE OF ABOUT 900 TO 1400 A., A SURFACE TENSION OF 30 TO 45 DYNES/ CENTIMETER2 AND A VISCOSITY OF 20 TO 80 CPS. AT 60 PERCENT TOTAL SOLIDS (BROOKFIELD NO. 1 SPINDLE, 25*C.)
Claim 2
Dependent Claim
56 words
AN AQUEOUS DISPERSION OF A VINYLIDENE CHLORIDE COPOLYMER OF AT LEAST 80 WEIGHT PERCENT OF VINYLIDENE CHLORIDE MONOMER HAVING AN AVERAGE PARTICLE SIZE OF ABOUT 900 TO 1400 A., A SURFACE TENSION OF 30 TO 45 DYNES/ CENTIMETER2 AND A VISCOSITY OF 20 TO 80 CPS. AT 60 PERCENT TOTAL SOLIDS (BROOKFIELD NO. 1 SPINDLE, 25*C.)
References Cited (Backward Citations)
US3097178A
Cited
US3104231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |