Patent US3156549A successfully refreshed from Google Patents.
US3156549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of melting silicon
Assignee: EIDP Inc
•
Filing: 1958-04-04
•
Granted: 1964-11-10
•
Expires: 1978-04-04
Abstract
No abstract record available.
Inventors
- 👤 Denis G Kelemen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:34
CPC Classifications
F; F27; F27D; F27D9/00; C; C01; C01B; C01B33/00; C01B33/02; C30; C30B; C30B11/00; C30B11/002; C30B13/00; C30B13/14; F27B; F27B14/00; F27B14/08; H; H10; H10P; H10P95/00; F27B14/06; F27B14/061; F27B2014/0837; F27M; F27M2001/00; F27M2001/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1612628A
Cited
US2443542A
Cited
US2475810A
Cited
US2467889A
Cited
US2667722A
Cited
US2875556A
Cited
US2686212A
Cited
US2789039A
Cited
US2792438A
Cited
US2930098A
Cited
US2872299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |