US2467861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of hydrocarbons
Assignee: Standard Oil Development Co
•
Filing: 1947-04-15
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Granted: 1949-04-19
•
Expires: 1967-04-15
Abstract
No abstract record available.
Inventors
- 👤 Walter G Scharmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:42
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/043; C07C1/0435; C07C1/044; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1741306A
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US1942530A
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US2287891A
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US2254748A
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US2254806A
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US2276693A
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US2360787A
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US2393240A
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US2393909A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |