US2470144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization and alkylation of normal paraffins
Assignee: Texaco Inc
•
Filing: 1942-04-10
•
Granted: 1949-05-17
•
Expires: 1962-04-10
Abstract
No abstract record available.
Inventors
- 👤 Louis A Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:46
CPC Classifications
C; C07; C07C; C07C9/00; C07C9/02; C07C9/10; C07C9/12; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/62; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; C07C2527/1213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2283142A
Cited
GB516780A
Cited
US2296370A
Cited
US2317901A
Cited
US2325122A
Cited
US2240134A
Cited
US2285785A
Cited
US2307773A
Cited
US2333648A
Cited
US2315078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-16 | 1952-11-15 | 1953-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-16 | 1956-11-15 | 1957-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-16 | 1960-11-15 | 1961-05-17 | $7700.00 | Window Closed / Lapsed |