Patent US3208892A successfully refreshed from Google Patents.
US3208892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed articles and methods of forming the same
Assignee: Westinghouse Electric Corp
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Filing: 1960-09-15
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Granted: 1965-09-28
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Expires: 1980-09-15
Abstract
No abstract record available.
Inventors
- 👤 Carl F Miller
- 👤 Donald I Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:40
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/04; C04B37/045; C03; C03C; C03C27/00; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B2237/00; C04B2237/02; C04B2237/10; C04B2237/30; C04B2237/32; C04B2237/50; C04B2237/52; C04B2237/64; C04B2237/76; C04B2237/765
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
THE METHOD OF JOINING A FIRST MEMBER TO A SECOND MEMBER COMPRISING THE STEPS OF DEPOSITING A COATING ON A SURFACE OF SAID FIRST MEMBER OF A SUSPENSION OF A SOLDER GLASS SEALING MATERIAL IN AN ORGANIC LIQUID VEHICLE, SAID SEALING MATERIAL HAVING A FLOW POINT LOWER THAN THAT OF SAID FIRST MEMBER, HEATING SAID COATED MEMBER IN AN OXIDIZING ATMOSPHERE TO A TEMPERATURE NOT AS HIGH AS THE FLOW POINT OF SAID SEALING MATERIAL TO REMOVE THE LIQUID CONSTITUENTS OF SAID SUSPENSION AND THEN HEATING SAID COATED MEMBER IN A VACUUM TO A TEMPERATURE AT LEAST AS HIGH AS THE FLOW POINT OF SAID SEALING MATERIAL AND NOT AS HIGH AS THE FLOW POINT OF SAID FIRST MEMBER TO FORM A FUSED LAYER OF SEALING MATERIAL ON SAID MEMBER, PLACING SAID SURFACE OF SAID FIRST MEMBER HAVING SAID FUSED LAYER THEREON IN CONTACT WITH SAID SECOND MEMBER AND JOINING SAID MEMBERS BY FUSION OF SAID SEALING MATERIAL.
Claim 2
Independent Claim
158 words
THE METHOD OF JOINING A FIRST MEMBER TO A SECOND MEMBER COMPRISING THE STEPS OF DEPOSITING A COATING ON A SURFACE OF SAID FIRST MEMBER OF A SUSPENSION OF A SOLDER GLASS SEALING MATERIAL IN AN ORGANIC LIQUID VEHICLE, SAID SEALING MATERIAL HAVING A FLOW POINT LOWER THAN THAT OF SAID FIRST MEMBER, HEATING SAID COATED MEMBER IN AN OXIDIZING ATMOSPHERE TO A TEMPERATURE NOT AS HIGH AS THE FLOW POINT OF SAID SEALING MATERIAL TO REMOVE THE LIQUID CONSTITUENTS OF SAID SUSPENSION AND THEN HEATING SAID COATED MEMBER IN A VACUUM TO A TEMPERATURE AT LEAST AS HIGH AS THE FLOW POINT OF SAID SEALING MATERIAL AND NOT AS HIGH AS THE FLOW POINT OF SAID FIRST MEMBER TO FORM A FUSED LAYER OF SEALING MATERIAL ON SAID MEMBER, PLACING SAID SURFACE OF SAID FIRST MEMBER HAVING SAID FUSED LAYER THEREON IN CONTACT WITH SAID SECOND MEMBER AND JOINING SAID MEMBERS BY FUSION OF SAID SEALING MATERIAL.
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |