US3635865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticized terminally active liquid diolefin polymers containing polyalkyl-enimines
Assignee: Polysar Ltd
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Filing: 1969-12-11
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Granted: 1972-01-18
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Expires: 1989-12-11
Abstract
Abstract THE RETARDATION OF THE RATE OF VULCANIZATION OF HIGHLY EXTENDED COMPOSITIONS OF LIQUID POLYMERS OF CONJUGATED DIOLEFINS HAVING TERMINAL ALLYLIC HALIDE GROUPS HAS BEEN FOUND TO BE LESSENED OR EVEN OVERCOME BY THE USE OF A POLY (ALKLLENIMINE) CONTAINING MORE THAN FIVE AMINE GROUPS AND HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 250.
Inventors
- 👤 Douglas C Edwards
- 👤 Premysl Thomas Dolezal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:48
CPC Classifications
C; C08; C08L; C08L19/00; C08L19/006; C08L79/00; C08L79/02; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26; C08K5/00; C08K5/01; C08K5/02; C08L95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |