US3203715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass-to-metal seal
Assignee: RCA Corp
•
Filing: 1959-12-31
•
Granted: 1965-08-31
•
Expires: 1979-12-31
Abstract
No abstract record available.
Inventors
- 👤 Benbenek Jules Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:25
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/02; H; H01; H01J; H01J5/00; H01J5/20; H01J5/22; H01J5/26; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0041; H01J2893/0043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A VACUUM-TIGHT NON-MAGNETIC METAL-TO-GLASS SEAL COMPRISING A STAINLESS STEEL MEMBER INCLUDING CHROMIUM IN AN AMOUNT ONLY FROM 12% TO 25% BY WEIGHT, SAID STAINLESS STEEL MEMBER HAVING A FIRST TAPERED REGION EXTENDING TO AN END OF SAID MEMBER AND A SECOND TAPERED REGION EXTENDING TO SAID FIRST TAPERED REGION, SAID FIRST TAPERED REGION HAVING A GREATER THICKNESS THAN SAID SECOND TAPERED REGION IN THE ZONE OF JUNCTURE OF SAID REGIONS, AND A HARD BOROSILICATE GLASSS MEMBER SALED TO AND IN DIRECT CONTACT WITH SAID FIRST TAPERED REGION.
Claim 2
Dependent Claim
87 words
A VACUUM-TIGHT NON-MAGNETIC METAL-TO-GLASS SEAL COMPRISING A STAINLESS STEEL MEMBER INCLUDING CHROMIUM IN AN AMOUNT ONLY FROM 12% TO 25% BY WEIGHT, SAID STAINLESS STEEL MEMBER HAVING A FIRST TAPERED REGION EXTENDING TO AN END OF SAID MEMBER AND A SECOND TAPERED REGION EXTENDING TO SAID FIRST TAPERED REGION, SAID FIRST TAPERED REGION HAVING A GREATER THICKNESS THAN SAID SECOND TAPERED REGION IN THE ZONE OF JUNCTURE OF SAID REGIONS, AND A HARD BOROSILICATE GLASSS MEMBER SALED TO AND IN DIRECT CONTACT WITH SAID FIRST TAPERED REGION.
References Cited (Backward Citations)
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US2564950A
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US3004182A
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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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |