US2199767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposal of coke plant waste liquors
Assignee: Carnegie Illinois Steel Corp
•
Filing: 1938-05-18
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Granted: 1940-05-07
•
Expires: 1958-05-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Wells
- 👤 Jr Philip J Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:36
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/02; C01C1/10; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/908; Y10S210/909
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) | 1943-05-07 | 1943-11-06 | 1944-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-05-07 | 1947-11-06 | 1948-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-05-07 | 1951-11-06 | 1952-05-07 | $7700.00 | Window Closed / Lapsed |