Patent US2863932A successfully refreshed from Google Patents.
US2863932A
Expired / Lapsed
US
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Method of and furnace for melting or refining glass
Assignee: Elemelt Ltd
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Filing: 1956-11-06
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Granted: 1958-12-09
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Expires: 1976-11-06
Abstract
No abstract record available.
Inventors
- 👤 Gell Philip Anthony Maunsell
- 👤 Hann Douglas Graeme
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:34
CPC Classifications
C; C03; C03B; C03B3/00; C03B5/00; C03B5/02; C03B5/027; C03B5/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US972778A
Cited
US1201664A
Cited
US1880540A
Cited
US2281408A
Cited
US2263848A
Cited
US2636913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |