US3488400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation process
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1967-08-21
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Granted: 1970-01-06
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Expires: 1987-08-21
Abstract
No abstract record available.
Inventors
- 👤 John Paton Candlin
- 👤 Robert William Dunning
- 👤 Ronald Stanley Mckenna
- 👤 Alan Roger Oldham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:05
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/08; C07C5/09; B; B01; B01J; B01J31/00; B01J31/16; B01J31/18; B01J31/1895; B01J31/22; B01J31/2204; B01J31/226; B01J31/24; B01J31/2404; B01J31/2409; B01J37/00; B01J37/16; C07C5/03; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/645; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/821; C07C2527/00; C07C2527/06; C07C2527/128; C07C2527/13; C07C2531/00; C07C2531/16; C07C2531/22; C07C2531/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2360555A
Cited
US3076858A
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US3110747A
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US3102899A
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US3113986A
Cited
US3391206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |