Patent US2766032A successfully refreshed from Google Patents.
US2766032A
Expired / Lapsed
US
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Impregnated crucible
Assignee: Individual
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Filing: 1943-11-16
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Granted: 1956-10-09
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Expires: 1963-11-16
Abstract
No abstract record available.
Inventors
- 👤 Meister George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:51
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/80; C04B41/81; C04B41/85; C04B41/87; B; B01; B01L; B01L3/00; B01L3/04; C04B41/45; C04B41/50; C04B41/5025; Y; Y10; Y10S; Y10S264/00; Y10S264/36; Y10S376/00; Y10S376/90
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
49 words
A POROUS ALUMDUM CRUCIBLE THAT IS COATED WITH A MATERIAL OF THE CLASS CONSISTING OF THORIA, BERYLLIA AND ZIRCONIA AND HAVING A CONTIGUOUS REGION BELOW THE COATING WHEREIN THE PORES OF THE CRUCIBLE ARE FILLED WITH SAID MATERIAL AND THE PARTICLES OF ALUNDUM COMPRISING SAID CRUCIBLE ARE COATED THEREWITH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |