Patent US3519663A successfully refreshed from Google Patents.
US3519663A
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US
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Complex compounds and methods of making same
Assignee: Imperial Chemical Industries Ltd
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Filing: 1966-08-15
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Granted: 1970-07-07
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Expires: 1986-08-15
Abstract
No abstract record available.
Inventors
- 👤 Stephen O'brien
- 👤 George Albert Gamlen
- 👤 David Thomas Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:50
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/02; C07F15/025; B; B01; B01J; B01J31/00; B01J31/02; B01J31/0231; B01J31/16; B01J31/20; B01J31/24; B01J31/2404; C07C; C07C5/00; C07C5/02; C07C5/03; C07C5/08; C07C5/09; C07F11/00; C07F11/005; C07F15/0006; C07F15/0013; C07F15/0073; C07F15/008; C07F15/0086; C07F15/0093; C07F9/00; C07F9/02; C08; C08G; C08G79/00; C08G79/14; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/645; B01J2231/70; B01J2531/00; B01J2531/02; B01J2531/0202; B01J2531/0205; B01J2531/60; B01J2531/62; B01J2531/64; B01J2531/66; B01J2531/80; B01J2531/82; B01J2531/824; B01J2531/828; B01J2531/84; B01J2531/842; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906
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) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |