US1702683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification of coke-oven gases and the like
Assignee: LAZOTE Inc
•
Filing: 1923-03-12
•
Granted: 1929-02-19
•
Expires: 1943-03-12
Abstract
No abstract record available.
Inventors
- 👤 Claude Georges
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/08; Y; Y10; Y10S; Y10S62/00; Y10S62/931; Y10S62/932
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1932-02-19 | 1932-08-20 | 1933-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-02-19 | 1936-08-20 | 1937-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-02-19 | 1940-08-20 | 1941-02-19 | $7700.00 | Window Closed / Lapsed |