US2915153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salt crystal-to-glass seal
Assignee: Individual
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Filing: 1956-02-29
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Granted: 1959-12-01
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Expires: 1976-02-29
Abstract
No abstract record available.
Inventors
- 👤 William J Hitchcock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:57
CPC Classifications
C; C03; C03C; C03C27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12542; Y10T428/12611
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A SEALING JOINT BETWEEN A METAL MEMBER AND A SALT CRYSTAL COMPRISING AN INORGANIC SALT CRYSTAL HAVING A SMOOTH UNGROOVED JUNCTURE SURFACE, AN INITIAL LAYER ON THE JUNCTURE SURFACE OF AN EASILY OXIDIZABLE SUBSTANCE CAPABLE OF PROVIDING A METAL OXIDE FILM WHICH IS NOT READILY SOLUBLE IN SILVER CHLORIDE, AN INTERMEDIATE THIN LAYER OF A NOBLE METAL SELECTED FROM THE GROUP CONSISTING OF SILVER AND GOLD, AND A THIRD LAYER CONSISTING OF SILVER CHLORIDE IN WHICH THE END PORTION OF A METAL MEMBER IS FUSED.
Claim 2
Dependent Claim
85 words
A SEALING JOINT BETWEEN A METAL MEMBER AND A SALT CRYSTAL COMPRISING AN INORGANIC SALT CRYSTAL HAVING A SMOOTH UNGROOVED JUNCTURE SURFACE, AN INITIAL LAYER ON THE JUNCTURE SURFACE OF AN EASILY OXIDIZABLE SUBSTANCE CAPABLE OF PROVIDING A METAL OXIDE FILM WHICH IS NOT READILY SOLUBLE IN SILVER CHLORIDE, AN INTERMEDIATE THIN LAYER OF A NOBLE METAL SELECTED FROM THE GROUP CONSISTING OF SILVER AND GOLD, AND A THIRD LAYER CONSISTING OF SILVER CHLORIDE IN WHICH THE END PORTION OF A METAL MEMBER IS FUSED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |