US3492277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Olefine copolymers containing polar groups and process for their preparation
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1967-11-24
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Granted: 1970-01-27
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Expires: 1987-11-24
Abstract
No abstract record available.
Inventors
- 👤 Keith Jasper Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/02; C08F210/04; C08F210/06; C08F210/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3082198A
Cited
US3062797A
Cited
US3210329A
Cited
US3069403A
Cited
US3308108A
Cited
US3287335A
Cited
US3442878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |