US2972041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for controlling the level of molten slag
Assignee: Individual
•
Filing: 1958-05-14
•
Granted: 1961-02-14
•
Expires: 1978-05-14
Abstract
No abstract record available.
Inventors
- 👤 Mosny Martin
- 👤 Pavelka Viliam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:15
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/12; B; B23; B23K; B23K25/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2053938A
Cited
US2065634A
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US2078479A
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US2585607A
Cited
US2364645A
Cited
US2340093A
Cited
US2443960A
Cited
US2713678A
Cited
US2719896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-14 | 1964-08-15 | 1965-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-14 | 1968-08-15 | 1969-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-14 | 1972-08-15 | 1973-02-14 | $7700.00 | Window Closed / Lapsed |