US3543386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of metallizing bodies made from ceramics or crystallized glass and method of producing a gas tight seal
Assignee: Panasonic Holdings Corp
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Filing: 1966-09-28
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Granted: 1970-12-01
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Expires: 1986-09-28
Abstract
Abstract 1,150,753. Brazing. MATSUSHITA ELECTRONICS CORP. 26 Sept., 1966 [28 Sept., 1965], No. 42915/66. Heading B3R. [Also in Divisions C1 and C7] A gas-tight seal is formed between a metal and a ceramic or a crystallized glass by depositing a film of W or Mo from the vapour phase by reduction of a halide or thermal decomposition of a carbonyl, while maintaining the ceramic or glass at a temperature above 500‹ C., and then brazing the metallized portion to a metal body or a metallized surface. In examples, copper tubes are silver brazed to Mo and W coated ceramic tubes.
Inventors
- 👤 Morio Inoue
- 👤 Gota Kano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:00
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/80; C04B41/81; C04B41/85; C04B41/88; C03; C03C; C03C17/00; C03C17/06; C03C17/09; C04B37/00; C04B37/02; C04B37/023; C04B37/026; C04B41/45; C04B41/50; C04B41/51; C04B41/5133; C23; C23C; C23C16/00; C23C16/06; C23C16/08; C23C16/14; C23C16/16; C03C2217/00; C03C2217/20; C03C2217/25; C03C2217/263; C03C2218/00; C03C2218/10; C03C2218/15; C04B2235/00; C04B2235/02; C04B2235/50; C04B2235/54; C04B2235/5418; C04B2235/5427; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2235/658; C04B2235/6581; C04B2235/6582; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/122; C04B2237/125; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/341; C04B2237/343; C04B2237/345; C04B2237/348; C04B2237/40; C04B2237/407; C04B2237/50; C04B2237/70; C04B2237/704; C04B2237/706; C04B2237/708; C04B2237/72; C04B2237/76; C04B2237/765
Claims Analysis
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References Cited (Backward Citations)
US2776472A
Cited
US3371406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |