US2101104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst for hydrogenating hydrocarbons
Assignee: Individual
•
Filing: 1934-04-26
•
Granted: 1937-12-07
•
Expires: 1954-04-26
Abstract
No abstract record available.
Inventors
- 👤 Harold M Smith
- 👤 Harry T Rall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:59
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/02; C07C5/10; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/70; C07C2523/74; C07C2523/75; C07C2523/755; C07C2523/76; C07C2523/80; C07C2523/84; C07C2523/85; C07C2523/88; C07C2523/883
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) | 1940-12-06 | 1941-06-07 | 1941-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-12-06 | 1945-06-07 | 1945-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-12-06 | 1949-06-07 | 1949-12-07 | $7700.00 | Window Closed / Lapsed |