US2242627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogenation catalyst and process
Assignee: Phillips Petroleum Co
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Filing: 1938-11-12
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Granted: 1941-05-20
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Expires: 1958-11-12
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Strickland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:06
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/03; B; B01; B01J; B01J23/00; B01J23/70; B01J23/72; C07C2521/00; C07C2521/02; C07C2523/00; C07C2523/70; C07C2523/72; C07C2523/74; C07C2523/755; 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) | 1944-05-19 | 1944-11-18 | 1945-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-05-19 | 1948-11-18 | 1949-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-05-19 | 1952-11-18 | 1953-05-20 | $7700.00 | Window Closed / Lapsed |