US3281309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic bonding
Assignee: General Electric Co
•
Filing: 1961-12-12
•
Granted: 1966-10-25
•
Expires: 1981-12-12
Abstract
No abstract record available.
Inventors
- 👤 John F Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:10
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/003; C04B37/005; C03; C03C; C03C3/00; C03C3/12; C03C3/16; C03C3/21; C04B37/02; C04B37/023; C04B37/025; C04B2237/00; C04B2237/02; C04B2237/10; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/50; C04B2237/62; C04B2237/70; C04B2237/704; C04B2237/76; C04B2237/765; C04B2237/80; C04B2237/84; C04B2237/88
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
A MEMBER FROM THE GROUP CONSISTING OF A HIGH DENSITY ALUMINA CERAMIC AND A REFRACTORY METAL HAVING A MELTING POINT HIGHER THANN APPROXIMATELY 1400*C. BONDED TO A HIGH DENSITY ALUMINA CERAMIC MEMBER BY A THIN LAYER OF GLASS DISPOSED BETWEEN THE MATING SURFACES OF THE MEMBERS AND FUSED TO BOTH SURFACES, SAID GLASS COMPRISING PRINCIPALLY ALUMINUM OXIDE AND ALKALINE EARTH METAL OXIDES IN NEAR EUTECTIC PROPORTIONS.
References Cited (Backward Citations)
US2693668A
Cited
US2771969A
Cited
US3121643A
Cited
US2964881A
Cited
US2931142A
Cited
US2988853A
Cited
US3007804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |