US2418441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation of organic compounds using titanium hydride as a catalyst
Assignee: EIDP Inc
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Filing: 1944-11-01
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Granted: 1947-04-01
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Expires: 1964-11-01
Abstract
No abstract record available.
Inventors
- 👤 Gerald M Whitman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:37
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/17; C07C29/172; B; B01; B01J; B01J21/00; B01J21/02; B01J27/00; B01J27/24; B01J31/00; B01J31/02; B01J31/12; B01J31/121; C07C5/00; C07C5/02; C07C5/08; C07C5/09; B01J2231/00; B01J2231/60; B01J2231/64; B01J2231/641; B01J2231/643; B01J2231/645; C07C2531/00; C07C2531/02; C07C2531/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-31 | 1950-09-30 | 1951-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-31 | 1954-09-30 | 1955-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-31 | 1958-09-30 | 1959-04-01 | $7700.00 | Window Closed / Lapsed |