US1876009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of solid fuels and products derived therefrom or other carbonaceous materials into valuable products
Assignee: Standard IG Co
•
Filing: 1928-02-29
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Granted: 1932-09-06
•
Expires: 1948-02-29
Abstract
No abstract record available.
Inventors
- 👤 Krauch Carl
- 👤 Pier Mathias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:20
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/08; C10G1/086; B; B01; B01J; B01J2219/00; B01J2219/02; B01J2219/0204; B01J2219/0236
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) | 1935-09-06 | 1936-03-07 | 1936-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-06 | 1940-03-07 | 1940-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-06 | 1944-03-07 | 1944-09-06 | $7700.00 | Window Closed / Lapsed |