US2957064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing of levitation melting
Assignee: Westinghouse Electric Corp
•
Filing: 1958-09-30
•
Granted: 1960-10-18
•
Expires: 1978-09-30
Abstract
No abstract record available.
Inventors
- 👤 Comenetz George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:28
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/22; H05B6/32; C; C22; C22B; C22B4/00; Y; Y02; Y02P; Y02P10/00; Y02P10/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2377175A
Cited
US2566221A
Cited
US2686864A
Cited
US2691306A
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US2844801A
Cited
US2898429A
Cited
US2904663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-18 | 1964-04-18 | 1964-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-18 | 1968-04-18 | 1968-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-18 | 1972-04-18 | 1972-10-18 | $7700.00 | Window Closed / Lapsed |