Patent US2849664A successfully refreshed from Google Patents.
US2849664A
Expired / Lapsed
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Semi-conductor diode
Assignee: US Philips Corp
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Filing: 1955-10-17
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Granted: 1958-08-26
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Expires: 1975-10-17
Abstract
No abstract record available.
Inventors
- 👤 Beale Julian Robert Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:36
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/26; C; C30; C30B; C30B13/00; C30B13/04; H03; H03D; H03D5/00; H03J; H03J5/00; H03J5/24; H03J5/242; H10; H10D; H10D99/00; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/062; Y10S438/00; Y10S438/904; Y10S438/914; Y10S438/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A SEMI-CONDUCTOR DIODE COMPRISING A SEMI-CONDUCTIVE BODY AND OHMIC AND RECTIFYING CONNECTIONS TO SAID BODY AND SPACED APART A DISTANCE GREATER THAN THE DIFFUSION LENGTH OF MINORITY CARRIERS IN SAID BODY, THE LIFETIME OF MINORTIY CARRIERS IN SAID BODY BEING NOT MORE THAN 5 MICROSECONDS.
Claim 2
Dependent Claim
45 words
A SEMI-CONDUCTOR DIODE COMPRISING A SEMI-CONDUCTIVE BODY AND OHMIC AND RECTIFYING CONNECTIONS TO SAID BODY AND SPACED APART A DISTANCE GREATER THAN THE DIFFUSION LENGTH OF MINORITY CARRIERS IN SAID BODY, THE LIFETIME OF MINORTIY CARRIERS IN SAID BODY BEING NOT MORE THAN 5 MICROSECONDS.
References Cited (Backward Citations)
US2646536A
Cited
US2744970A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |