US3472807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl-containing copolymer latex and method of preparing same
Assignee: WR Grace and Co
•
Filing: 1965-12-06
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Granted: 1969-10-14
•
Expires: 1985-12-06
Abstract
No abstract record available.
Inventors
- 👤 Philip K Isaacs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:46
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/06; C08; C08F; C08F290/00; C08F290/02; C08F290/06; C08F299/00; C08F299/02; C08F299/06; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/67; C08G18/671; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08G63/47; C08G69/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA732276A
Cited
US2882260A
Cited
GB820005A
Cited
US3049505A
Cited
US3297745A
Cited
US3306866A
Cited
US3256226A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |