US2962174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for charging open hearth furnaces
Assignee: Individual
•
Filing: 1958-12-24
•
Granted: 1960-11-29
•
Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 Harold F Shekels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:12
CPC Classifications
F; F27; F27B; F27B3/00; F27B3/10; F27B3/18; F27D; F27D3/00; F27D3/06; F27D2003/0034; F27D2003/0059; F27D3/10; F27D2003/105; F27D3/0025; F27D3/003; F27D3/0031
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE272851C
Cited
US406409A
Cited
US2175541A
Cited
US2310924A
Cited
US2306811A
Cited
US2711837A
Cited
US2606015A
Cited
US2851178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |