Patent US2778926A successfully refreshed from Google Patents.
US2778926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for welding and soldering by electron bombardment
Assignee: Licentia Patent Verwaltungs GmbH
•
Filing: 1952-09-04
•
Granted: 1957-01-22
•
Expires: 1972-09-04
Abstract
No abstract record available.
Inventors
- 👤 Schneider Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:12
CPC Classifications
H; H10; H10P; H10P72/00; H10P72/04; H10P72/0428; A; A47; A47C; A47C31/00; A47C31/02; A47C31/04; B; B23; B23K; B23K15/00; B23K15/0046; B23K15/0093; H01; H01J; H01J37/00; H01J37/30; H01J37/305; H01J37/3053; H01J37/3056; H01J37/315; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD FOR PRODUCING SYSTEMS HAVING A UNIDRIECTIONAL ELECTRIC CONDUCTIVITY INCLUDING A CRYSTAL MEANS CONSISTING OF A CRYSTALLINE SEM-CONDUCTIVE MATERIAL FROM THE GROUP COMPRISING SILICON AND GERMANIUM AND A CONTACT MEANS, COMPRISING THE STEPS OF ATTACHING SAID CONTACT MEANS TO SAID CRYSTAL MEANS BY JOINING SURFACE PORTIONS OF SAID CRYSTAL MEANS AND OF SAID CONTACT MEANS; AND BOMBARDING SAID SURFACE PORTIONS BY ELECTRONS SO AS TO HEAT THE SAME AND TO PRODUCE A PERMANENT CONNECTION BETWEEN SAID SURFACE LAYER PORTIONS.
Claim 2
Independent Claim
80 words
A METHOD FOR PRODUCING SYSTEMS HAVING A UNIDRIECTIONAL ELECTRIC CONDUCTIVITY INCLUDING A CRYSTAL MEANS CONSISTING OF A CRYSTALLINE SEM-CONDUCTIVE MATERIAL FROM THE GROUP COMPRISING SILICON AND GERMANIUM AND A CONTACT MEANS, COMPRISING THE STEPS OF ATTACHING SAID CONTACT MEANS TO SAID CRYSTAL MEANS BY JOINING SURFACE PORTIONS OF SAID CRYSTAL MEANS AND OF SAID CONTACT MEANS; AND BOMBARDING SAID SURFACE PORTIONS BY ELECTRONS SO AS TO HEAT THE SAME AND TO PRODUCE A PERMANENT CONNECTION BETWEEN SAID SURFACE LAYER PORTIONS.
References Cited (Backward Citations)
US2128581A
Cited
US2267752A
Cited
US2267714A
Cited
US2423729A
Cited
US2345080A
Cited
US2381025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |