US3136050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container closure method
Assignee: Texas Instruments Inc
•
Filing: 1959-11-17
•
Granted: 1964-06-09
•
Expires: 1979-11-17
Abstract
No abstract record available.
Inventors
- 👤 Robert E Trueb
- 👤 Arnold M Walkow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:50
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/02; B26B21/06; H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/132; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/4921; Y10T29/49211; Y10T29/49213
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
95 words
METHOD OF OBTAINING A BONDED CLOSURE FOR A TRANSISTOR PACKAGE WHICH INCLUDES AN ALUMINUM CAN HAVING A PERIPHERAL FLANGE AT THE OPEN END THEREOF AND A KOYAR HEADER HAVING A PERIPHERAL FLANGE FOR CORRESPONDENCE WITH THE FLANGE OF SAID CAN IN OPPOSING RELATION THEREWITH, COMPRISING THE STEPS OF (A) CLADDING ONE SURFACE OF A STEEL RING WITH ALUMINUM, (B) RESISTANCE WELDING THE UNCLAD SURFACE OF SAID STEEL RING TO THE FLANGE OF SAID HEADER, AND (C) SECURING THE ALUMIHUM CLAD SURFACE OF SAID STEEL RING TO THE FLANGE OF SAID ALUMINUM CAN BY THERMOCOMPRESSION BONDING.
Claim 2
Dependent Claim
95 words
METHOD OF OBTAINING A BONDED CLOSURE FOR A TRANSISTOR PACKAGE WHICH INCLUDES AN ALUMINUM CAN HAVING A PERIPHERAL FLANGE AT THE OPEN END THEREOF AND A KOYAR HEADER HAVING A PERIPHERAL FLANGE FOR CORRESPONDENCE WITH THE FLANGE OF SAID CAN IN OPPOSING RELATION THEREWITH, COMPRISING THE STEPS OF (A) CLADDING ONE SURFACE OF A STEEL RING WITH ALUMINUM, (B) RESISTANCE WELDING THE UNCLAD SURFACE OF SAID STEEL RING TO THE FLANGE OF SAID HEADER, AND (C) SECURING THE ALUMIHUM CLAD SURFACE OF SAID STEEL RING TO THE FLANGE OF SAID ALUMINUM CAN BY THERMOCOMPRESSION BONDING.
Claim 3
Independent Claim
78 words
A METHOD OF OBTAINING A BONDED CLOSURE FOR A TRANSISTOR PACKAGE WHICH INCLUDES AN ALUMINUM CAN HAVING A PERIPHERAL FLANGE AT THE OPEN END THEREOF AND A COPPER HEADER HAVING A PERIPHERAL FLANGE FOR CORRESPONDENCE THE FLANGE OF SAID CAN IN OPPOSING RELATION THEREWITH, COMPRISING THE STEPS OF (A) CLADDING ONE SURFACE OF THE FLANGE OF SAID HEADER WITH ALUMINUM, AND (B) SECURING THE FLANGE OF SAID CAN TO THE ALUMINUM CLADDING OF SAID HEADER BY THERMOCOMPRESSION BONDING.
Claim 4
Independent Claim
78 words
A METHOD OF OBTAINING A BONDED CLOSURE FOR A TRANSISTOR PACKAGE WHICH INCLUDES AN ALUMINUM CAN HAVING A PERIPHERAL FLANGE AT THE OPEN END THEREOF AND A COPPER HEADER HAVING A PERIPHERAL FLANGE FOR CORRESPONDENCE THE FLANGE OF SAID CAN IN OPPOSING RELATION THEREWITH, COMPRISING THE STEPS OF (A) CLADDING ONE SURFACE OF THE FLANGE OF SAID HEADER WITH ALUMINUM, AND (B) SECURING THE FLANGE OF SAID CAN TO THE ALUMINUM CLADDING OF SAID HEADER BY THERMOCOMPRESSION BONDING.
References Cited (Backward Citations)
US2270278A
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US2304666A
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US2934588A
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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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |