US3666429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallized and brazed ceramics
Assignee: Xerox Corp
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Filing: 1969-09-29
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Granted: 1972-05-30
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Expires: 1989-09-29
Abstract
Abstract A PROCESS FOR METALLIZING HIGH PURITY CERAMIC PARTS AND/ OR BRAZING A HIGH PURITY CERAMIC PART TO A REFRACTORY METAL PART OR ANOTHER CERAMIC PART USING A TERNARY TITANIUM, VANADIUM, AND ZIRCONIUM ALLOY IS DESCRIBED. A PARTICULARLY EFFICACIOUS ALLOY COMPRISING 21-42% TITANIUM, 15-33% VANADIUM AND 36-54% ZIRCONIUM YIELDS HERMETIC SEALS WHEN PARTS ARE BONDED IN ACCORDANCE WITH THE PROCESS DESCRIBED HEREIN.
Inventors
- 👤 Albert Evan Campbell Jr
- 👤 Andrew O Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:03
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/32; C; C04; C04B; C04B37/00; C04B37/003; C04B37/006; C04B37/02; C04B37/023; C04B37/026; C22; C22C; C22C16/00; C04B2235/00; C04B2235/65; C04B2235/656; C04B2235/6565; C04B2235/6567; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/122; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/40; C04B2237/403; C04B2237/50; C04B2237/52; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12618; Y10T428/12771; Y10T428/12806; Y10T428/12812
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |