Patent US3669715A successfully refreshed from Google Patents.
US3669715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing a metal part to be sealed in a glass-ceramic composite
Assignee: GTE Sylvania Inc
•
Filing: 1970-06-17
•
Granted: 1972-06-13
•
Expires: 1990-06-17
Abstract
Abstract DISCLOSED ARE TECHNIQUES FOR FABRICATING METAL-CERAMIC ARTICLES WHEREIN A HERMETIC SEAL IS DESIRED BETWEEN THE METAL-CERAMIC JOINTURE. THE TECHNIQUE INVOLVES UTILIZATION OF A POWDERED CERAMIC CONTAINING A BINDING MATERIAL WHICH IS COMPRESSED IN A MOULD AROUND THE METAL PART OR PARTS TO BE INCORPORATED THEREIN. THE GREEN PART SO FORMED EXHIBITS SUPERIOR STRENGTH AND THE ARTICLE IS MUCH EASIER TO HANDLE FOR SUBSEQUENT FIRING. ALSO DISCLOSED IS A GLASSCERAMIC POWDER COMPOSITION IDEALLY SUITED TO THIS PROCESS, TOGETHER WITH METHODS FOR TREATING THE METAL PARTS TO INSURE A HERMETIC SEAL.
Inventors
- 👤 Edward Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:44
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/60; C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/634; C04B35/63404; C04B35/63416; C04B37/00; C04B37/02; C04B37/023; C04B37/025; C04B2235/00; C04B2235/60; C04B2235/604; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/06; C04B2237/09; C04B2237/10; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/40; C04B2237/405; C04B2237/50; C04B2237/52; C04B2237/59; C04B2237/592; C04B2237/62; C04B2237/74; C04B2237/76
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |