US1970248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of valuable hydrocarbons from varieties of coal, tars, mineral oils, and the like
Assignee: Standard IG Co
•
Filing: 1930-09-05
•
Granted: 1934-08-14
•
Expires: 1950-09-05
Abstract
No abstract record available.
Inventors
- 👤 Pier Mathias
- 👤 Hochschwender Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:04
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/08; C10G1/06; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/91
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) | 1937-08-13 | 1938-02-12 | 1938-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-08-13 | 1942-02-12 | 1942-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-08-13 | 1946-02-12 | 1946-08-14 | $7700.00 | Window Closed / Lapsed |