US1774486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Converting furnace
Assignee: CHARLES J KEKICH
•
Filing: 1927-12-31
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Granted: 1930-08-26
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Expires: 1947-12-31
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Kekich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
C; C22; C22B; C22B15/00; C22B15/0026; C22B15/0028; C22B15/003; C22B15/0041; F; F27; F27B; F27B17/00
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) | 1933-08-25 | 1934-02-24 | 1934-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-08-25 | 1938-02-24 | 1938-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-08-25 | 1942-02-24 | 1942-08-26 | $7700.00 | Window Closed / Lapsed |