US1707937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for charging tilting smelting furnaces
Assignee: Individual
•
Filing: 1928-02-29
•
Granted: 1929-04-02
•
Expires: 1948-02-29
Abstract
No abstract record available.
Inventors
- 👤 Gerlach Josef Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:31
CPC Classifications
F; F27; F27B; F27B3/00; F27B3/10; F27B3/18; F27D; F27D3/00; F27D3/12; F27B3/06; F27B3/065; F27B3/08; F27B3/085; F27D2003/0085; F27D2003/0089; F27D2003/009; F27D2003/125; F27D2003/127; F27D3/0025; F27D3/003; F27D3/0031
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) | 1932-04-01 | 1932-10-01 | 1933-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-04-01 | 1936-10-01 | 1937-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-04-01 | 1940-10-01 | 1941-04-02 | $7700.00 | Window Closed / Lapsed |