US3144426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of aqueous dispersions of graft interpolymer material
Assignee: BURKE
•
Filing: 1960-03-04
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Granted: 1964-08-11
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Expires: 1980-03-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Oliver W Burke
- 👤 Oscar M Grace
- 👤 Berry Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:53
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/08; Y; Y10; Y10S; Y10S8/00; Y10S8/09; Y10S8/18
Claims Analysis
Total Claims: 0
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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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |