Patent US3182117A successfully refreshed from Google Patents.
US3182117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device in coldwelded envelope
Assignee: US Philips Corp
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Filing: 1961-10-19
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Granted: 1965-05-04
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Expires: 1981-10-19
Abstract
No abstract record available.
Inventors
- 👤 Roovers Wilhelmus Antonius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:10
CPC Classifications
B; B23; B23K; B23K20/00; H; H01; H01J; H01J5/00; H01J5/20; H01J5/22; H01J5/28; H01J2893/00; H01J2893/0033; H01J2893/0037; H01J2893/0044
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A SEMICONDUCTORS DEVICE COMPRISING A SEMICONDUCTOR ELEMENT AND AN ENVELOPE HERMETICALLY SEALING AND ENCLOSING THE SEMI-CONDUCTOR ELEMENT, SAID ENVELOPE COMPRISING BASE AND CAP ANNULAR METALLIC MEMBERS EACH HAVING ANNULAR FLANGED PORTIONS COLD-WELDED TOGETHER TO FORM A VACUUM-TIGHT SEAL, THE CAP FLANGED PORTION HAVING AN UPPER TRANSVERSE SURFACE AND EXTENDING DOWNWARD FROM ITS PERIPHERY OUTER AND INNER SURFACES INTERSECTING AT A POINT REMOTE FROM THE SAID FLANGED PORTION AND DEFINING A SHARP EDGE, THE SEMICONDUCTOR ELEMENT BEING MOUNTED AT A CENTRAL REGION OF THE BASE MEMBER AND THE BASE FLANGED PORTION HAVING A RECESS SURROUNDING AND SPACED FROM THE SEMICONDUCTOR ELEMENT AND AN UPSTANDING OUTER WALL PORTION DEFINING SAID RECESS, THE CAP FLANGED PORTION FITTING
Claim 2
Dependent Claim
114 words
A SEMICONDUCTORS DEVICE COMPRISING A SEMICONDUCTOR ELEMENT AND AN ENVELOPE HERMETICALLY SEALING AND ENCLOSING THE SEMI-CONDUCTOR ELEMENT, SAID ENVELOPE COMPRISING BASE AND CAP ANNULAR METALLIC MEMBERS EACH HAVING ANNULAR FLANGED PORTIONS COLD-WELDED TOGETHER TO FORM A VACUUM-TIGHT SEAL, THE CAP FLANGED PORTION HAVING AN UPPER TRANSVERSE SURFACE AND EXTENDING DOWNWARD FROM ITS PERIPHERY OUTER AND INNER SURFACES INTERSECTING AT A POINT REMOTE FROM THE SAID FLANGED PORTION AND DEFINING A SHARP EDGE, THE SEMICONDUCTOR ELEMENT BEING MOUNTED AT A CENTRAL REGION OF THE BASE MEMBER AND THE BASE FLANGED PORTION HAVING A RECESS SURROUNDING AND SPACED FROM THE SEMICONDUCTOR ELEMENT AND AN UPSTANDING OUTER WALL PORTION DEFINING SAID RECESS, THE CAP FLANGED PORTION FITTING
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) | 1968-05-03 | 1968-11-02 | 1969-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-03 | 1972-11-02 | 1973-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-03 | 1976-11-02 | 1977-05-04 | $7700.00 | Window Closed / Lapsed |