US3074143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making metalized ceramic bodies
Assignee: Individual
•
Filing: 1960-02-01
•
Granted: 1963-01-22
•
Expires: 1980-02-01
Abstract
No abstract record available.
Inventors
- 👤 Baynard R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:56
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/51; C04B41/5133; C04B41/5138; C04B41/80; C04B41/81; C04B41/85; C04B41/88; H; H05; H05K; H05K3/00; H05K3/38; C04B2111/00; C04B2111/00474; C04B2111/00844; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069; Y10T29/4998; Y10T29/49982
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A METHOD OF SIMULTANEOUSLY STRONGLY AND RELIABLY FUSING A METAL COAT TO A CERAMIC BODY AND VITRIFYING SAID BODY TO FORM A METALIZED CERAMIC BODY SUITABLE FOR A VACUUM-TIGHT SEAL HOUSING IN ELECTRICAL CIRCUITRY COMPRISING; (A) FORMING A GREEN CERAMIC MEMBER CONSISTING OF ALUMINIUM OXIDE, A SMALL AMOUNT OF CLAY, A SMALL AMOUNT OF TALC, AND AT LEAST ONE OF THE CLASS OF FLUID VEHICLES, BINDERS, AND PLASTICIZING AGENTS; (B) APPLYING A COAT OF POWERED METAL SELECTED FROM THE GROUP CONSISTING OF TUNGSTEN, MOLYBDENUM AND MANGANESE MIXED WITH AT LEAST ONE OF THE CLASS OF VEHICLES AND BINDERS; (C) FIRING SAID GREEN CERAMIC MEMBER AND SAID APPLIED METAL COAT IN A REDUCING ATMOSPHERE AT A TEMPERATURE PROGRESSIVELY RAISED TO A MAXIMUM OF APPROXIMATELY 3100* F. UNTIL SAID CERAMIC BODY AND METAL COAT ARE BONDED TO GETHER, ALL SAID BINDERS, VEHICLES AND PLASTICIZING AGENTS ARE DECOMPOSED AND THE GREEN CERAMIC BODY IS VITRIFIED INTO A FLEXIBLE FIRED CERAMIC BODY; AND (D) PROGRESSIVELY COOLING SAID FIRED CERAMIC BODY AND SAID METAL COAT.
Claim 2
Independent Claim
170 words
A METHOD OF SIMULTANEOUSLY STRONGLY AND RELIABLY FUSING A METAL COAT TO A CERAMIC BODY AND VITRIFYING SAID BODY TO FORM A METALIZED CERAMIC BODY SUITABLE FOR A VACUUM-TIGHT SEAL HOUSING IN ELECTRICAL CIRCUITRY COMPRISING; (A) FORMING A GREEN CERAMIC MEMBER CONSISTING OF ALUMINIUM OXIDE, A SMALL AMOUNT OF CLAY, A SMALL AMOUNT OF TALC, AND AT LEAST ONE OF THE CLASS OF FLUID VEHICLES, BINDERS, AND PLASTICIZING AGENTS; (B) APPLYING A COAT OF POWERED METAL SELECTED FROM THE GROUP CONSISTING OF TUNGSTEN, MOLYBDENUM AND MANGANESE MIXED WITH AT LEAST ONE OF THE CLASS OF VEHICLES AND BINDERS; (C) FIRING SAID GREEN CERAMIC MEMBER AND SAID APPLIED METAL COAT IN A REDUCING ATMOSPHERE AT A TEMPERATURE PROGRESSIVELY RAISED TO A MAXIMUM OF APPROXIMATELY 3100* F. UNTIL SAID CERAMIC BODY AND METAL COAT ARE BONDED TO GETHER, ALL SAID BINDERS, VEHICLES AND PLASTICIZING AGENTS ARE DECOMPOSED AND THE GREEN CERAMIC BODY IS VITRIFIED INTO A FLEXIBLE FIRED CERAMIC BODY; AND (D) PROGRESSIVELY COOLING SAID FIRED CERAMIC BODY AND SAID METAL COAT.
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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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |