Patent US4514732A successfully refreshed from Google Patents.
Patent US3489699A successfully refreshed from Google Patents.
US3489699A
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Core-shell graft copolymers with ion exchange resin shell
Assignee: Orica Ltd
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Filing: 1967-12-26
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Granted: 1970-01-13
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Expires: 1987-12-26
Abstract
No abstract record available.
Inventors
- 👤 Hendrik A J Battaerd
- 👤 Geoffrey W Tregear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:12
CPC Classifications
C; C08; C08F; C08F291/00; C08F291/18; B; B01; B01J; B01J39/00; B01J39/08; B01J39/16; B01J39/18; B01J39/20; C08F255/00; Y; Y10; Y10S; Y10S522/00; Y10S522/911; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3115418A
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US3252880A
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US3247133A
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US2999056A
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US2956899A
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US3298942A
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US3298969A
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US3252921A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |