US3241009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple resistance semiconductor elements
Assignee: AT&T Inc
•
Filing: 1961-11-06
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Granted: 1966-03-15
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Expires: 1981-11-06
Abstract
No abstract record available.
Inventors
- 👤 Jacob F Dewald
- 👤 William R Northover
- 👤 Arthur D Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:32
CPC Classifications
H; H03; H03B; H03B7/00; H03B7/02; H03B7/06; C; C03; C03C; C03C3/00; C03C3/32; C03C3/321; G; G11; G11C; G11C13/00; G11C13/0002; G11C13/0004; H01; H01B; H01B1/00; H01B1/06; H01B1/08; H03F; H03F3/00; H03F3/04; H03F3/10; H03F3/12; H03K; H03K3/00; H03K3/02; H03K3/313; H03K3/315; H10; H10N; H10N70/00; H10N70/011; H10N70/021; H10N70/20; H10N70/231; H10N70/801; H10N70/881; H10N70/882; H10N70/8828; H10N70/883
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
AN ELECTRICAL COMPONENT CONSISTING ESSENTIALLY OF A GLASS BODY HAVING AN ELECTRONIC RESISTIVITY WITHIN THE RANGE 10XX2 TO 10XX8 OHM-CM. AND ELECTRICAL MEANS FOR MAKING A NONOHMIC CONTACT TO THE GLASS BODY, SAID COMPONENT HAVING A CURRENT VOLTAGE CHARACTERISTIC WHICH INCLUDES A NEGATIVE RESISTANCE REGION, ELECTRICAL MEANS FOR BIASING THE COMPONENT AT A POINT IN THE CURRENT VOLTAGE CHARACTERISTIC NEAR THE NEGATIVE RESISTANCE REGION AND ELECTRICAL MEANS FOR IMPRESSING AN A.C. SIGNAL ACROSS THE BIASED COMPONENT TO OBTAIN AN AMPLIFIED OUTPUT SIGNAL.
Claim 2
Dependent Claim
82 words
AN ELECTRICAL COMPONENT CONSISTING ESSENTIALLY OF A GLASS BODY HAVING AN ELECTRONIC RESISTIVITY WITHIN THE RANGE 10XX2 TO 10XX8 OHM-CM. AND ELECTRICAL MEANS FOR MAKING A NONOHMIC CONTACT TO THE GLASS BODY, SAID COMPONENT HAVING A CURRENT VOLTAGE CHARACTERISTIC WHICH INCLUDES A NEGATIVE RESISTANCE REGION, ELECTRICAL MEANS FOR BIASING THE COMPONENT AT A POINT IN THE CURRENT VOLTAGE CHARACTERISTIC NEAR THE NEGATIVE RESISTANCE REGION AND ELECTRICAL MEANS FOR IMPRESSING AN A.C. SIGNAL ACROSS THE BIASED COMPONENT TO OBTAIN AN AMPLIFIED OUTPUT SIGNAL.
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |