US2433482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preventing build-up of light gases in a paraffin isomerization process
Assignee: Standard Oil Co
•
Filing: 1941-12-15
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Granted: 1947-12-30
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Expires: 1961-12-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph K Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:05
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/271; C07C5/2718; C07C5/2721
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2100354A
Cited
US2220091A
Cited
US2220092A
Cited
US2310523A
Cited
US2300249A
Cited
US2301615A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-29 | 1951-06-30 | 1951-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-29 | 1955-06-30 | 1955-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-29 | 1959-06-30 | 1959-12-30 | $7700.00 | Window Closed / Lapsed |