US3288772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization method using novel surface-active agents
Assignee: Lever Brothers Co
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Filing: 1961-07-14
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Granted: 1966-11-29
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Expires: 1981-07-14
Abstract
No abstract record available.
Inventors
- 👤 Becker Ewald George
- 👤 Wieske Theophil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:16
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/003; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F2/26; C11C3/04; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06; Y10S516/07
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |