US990891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of treating blast-furnace gases and preparing char-peat.
Assignee: LOOMIS UTILIZATION Co
•
Filing: 1906-05-28
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Granted: 1911-05-02
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Expires: 1926-05-28
Abstract
No abstract record available.
Inventors
- 👤 Burdett Loomis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:39
CPC Classifications
C; C10; C10F; C10F5/00; Y; Y10; Y10S; Y10S75/00; Y10S75/961
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) | 1914-05-01 | 1914-10-31 | 1915-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-05-01 | 1918-10-31 | 1919-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-05-01 | 1922-10-31 | 1923-05-02 | $7700.00 | Window Closed / Lapsed |