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US2429575A
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Synthesis of branched chain hydrocarbons
Assignee: Shell Development Co
•
Filing: 1944-09-16
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Granted: 1947-10-21
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Expires: 1964-09-16
Abstract
No abstract record available.
Inventors
- 👤 Walter G Appleby
- 👤 Lawrence L Lovell
- 👤 Mark P L Love
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:08
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/08; C07C; C07C1/00; C07C1/32; C07C1/321; C07C1/322; C07C9/00; C07C9/14; C07C9/16; C07C2527/00; C07C2527/02; C07C2527/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US951072A
Cited
US1897798A
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US2111126A
Cited
US2141611A
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US2067764A
Cited
US2295608A
Cited
US2259723A
Cited
US2344469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-20 | 1951-04-21 | 1951-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-20 | 1955-04-21 | 1955-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-20 | 1959-04-21 | 1959-10-21 | $7700.00 | Window Closed / Lapsed |