US3514500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer dispersions and dispersants
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1965-07-30
•
Granted: 1970-05-26
•
Expires: 1985-07-30
Abstract
No abstract record available.
Inventors
- 👤 Desmond Wilfrid John Osmond
- 👤 Frederick Andrew Waite
- 👤 Derek John Walbridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:38
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/04; C08F2/06; C08F2/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3277157A
Cited
GB941305A
Cited
US3244772A
Cited
US3235626A
Cited
US3301805A
Cited
US3232903A
Cited
US3390206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |