US2798989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices and methods of their manufacture
Assignee: Siemens Schuckertwerke AG
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Filing: 1952-03-10
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Granted: 1957-07-09
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Expires: 1972-03-10
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Welker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:18
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/80; H10D62/85; H10D62/854; B; B01; B01J; B01J19/00; C; C01; C01B; C01B21/00; C01B21/06; C23; C23C; C23C14/00; C30; C30B; C30B11/00; C30B25/00; C30B25/02; C30B25/06; C30B9/00; G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/18; G01J; G01J1/00; G01J1/42; G01R; G01R33/00; G01R33/02; G01R33/06; H03; H03B; H03B9/00; H03B9/12; H10D10/00; H10D62/10; H10F; H10F55/00; H10F99/00; H10H; H10H20/00; H10H20/80; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/853; H10P; H10P14/00; H10P14/60; H10P14/63; H10P14/6302; H10P14/6304; H10P14/6306; H10P14/6312; H10P52/00; H10P95/00; H10P95/50; H10W; H10W74/00; H10W74/10; H10W74/131; Y; Y10; Y10S; Y10S148/00; Y10S148/02; Y10S148/022; Y10S148/065; Y10S148/072; Y10S148/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A SEMICONDUCTOR DEVICE COMPRISING A CRYSTALLINE BODY AND CIRCUIT MEANS ELECTRICALLY CONNECTED THEREWITH SAID BODY BEING FORMED OF A COMPOUND OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF BORON, ALUMINUM, GALLIUM AND INDIUM WITH AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF NITROGEN, PHOSPHORUS, ARSENIC AND ANTIMONY.
Claim 2
Dependent Claim
48 words
A SEMICONDUCTOR DEVICE COMPRISING A CRYSTALLINE BODY AND CIRCUIT MEANS ELECTRICALLY CONNECTED THEREWITH SAID BODY BEING FORMED OF A COMPOUND OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF BORON, ALUMINUM, GALLIUM AND INDIUM WITH AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF NITROGEN, PHOSPHORUS, ARSENIC AND ANTIMONY.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |