US1934023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for obtaining valuable products from coal and other carbonaceous materials and improved apparatus for such a process
Assignee: Standard IG Co
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Filing: 1930-05-15
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Granted: 1933-11-07
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Expires: 1950-05-15
Abstract
No abstract record available.
Inventors
- 👤 Clarence A Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:15
CPC Classifications
C; C10; C10G; C10G11/00; C10G1/00; C10G1/08; C10G1/083; B; B01; B01J; B01J2219/00; B01J2219/32; B01J2219/322; B01J2219/32203; B01J2219/3221; B01J2219/32237; B01J2219/32282; B01J2219/32286; B01J2219/324; B01J2219/32466; C07; C07C; C07C2523/00
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) | 1936-11-06 | 1937-05-08 | 1937-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-11-06 | 1941-05-08 | 1941-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-11-06 | 1945-05-08 | 1945-11-07 | $7700.00 | Window Closed / Lapsed |