US2831786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
p type
Assignee: —
•
Filing: —
•
Granted: 1958-04-22
•
Expires: 1975-04-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:56
CPC Classifications
C; C22; C22C; C22C28/00; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE METHOD OF FORMING A STRAIN- AND CRACK-FREE ALLOYED CONNECTION TO A BODY COMPRISING SEMICONDUCTIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILICON, GERMANIUM, AND SILICON-GERMANIUM ALLOYS WHICH COMPRISES FUSING A MASS COMPRISING A PORTION OF SAID BODY AND GOLD, INCORPORATING THALLIUM IN SAID MOLTEN FUSED MASS IN A WEIGHT RATIO WITH RESPECT TO THE COLD OF FROM ABOUT 1:1 TO ABOUT 1:4, AND FREEZING SAID FUSED MASS.
Claim 2
Independent Claim
68 words
THE METHOD OF FORMING A STRAIN- AND CRACK-FREE ALLOYED CONNECTION TO A BODY COMPRISING SEMICONDUCTIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILICON, GERMANIUM, AND SILICON-GERMANIUM ALLOYS WHICH COMPRISES FUSING A MASS COMPRISING A PORTION OF SAID BODY AND GOLD, INCORPORATING THALLIUM IN SAID MOLTEN FUSED MASS IN A WEIGHT RATIO WITH RESPECT TO THE COLD OF FROM ABOUT 1:1 TO ABOUT 1:4, AND FREEZING SAID FUSED MASS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |