Patent US4506438A successfully refreshed from Google Patents.
Patent US3316494A successfully refreshed from Google Patents.
US3316494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor microwave power detector
Assignee: Verizon Laboratories Inc
•
Filing: 1964-05-04
•
Granted: 1967-04-25
•
Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 Richard I Harrison
- 👤 Zucker Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:18
CPC Classifications
H; H03; H03D; H03D9/00; H03D9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
APPARATUS FOR DETECTING MICROWAVE POWER IN A WAVEGUIDE WHICH COMPRISES (A) A WAFER OF EXTRINSIC SEMICONDUCTOR MATERIAL HAVING A CARRIER CONCENTRATION OF NOT MORE THAN 10**16 CARRIERS PER CUBIC CENTIMETER, (B) A NON-INJECTING PROBE CONTACTING ONE FACE OF SAID WAFER, (C) AN OHMIC CONTACT MOUNTED ON THE OPPOSING FACE OF SAID WAFER AND HAVING A CONTACT AREA AT LEAST 10 TIMES AS LARGE AS THE CONTACT AREA OF SAID PROBE, AND (D) MEANS FOR MOUNTING SAID WAFER PROBE AND CONTACT IN THE WAVEGUIDE WITH SAID PROBE BEING POSITIONED AT A POINT OF MAXIMUM FIELD INTENSITY THEREIN, A VOLTAGE WHICH IS A FUNCTION OF THE MICROWAVE POWER IN THE WAVEGUIDE BEING GENERATED BETWEEN SAID PROBE AND CONTACT.
Claim 2
Dependent Claim
116 words
APPARATUS FOR DETECTING MICROWAVE POWER IN A WAVEGUIDE WHICH COMPRISES (A) A WAFER OF EXTRINSIC SEMICONDUCTOR MATERIAL HAVING A CARRIER CONCENTRATION OF NOT MORE THAN 10**16 CARRIERS PER CUBIC CENTIMETER, (B) A NON-INJECTING PROBE CONTACTING ONE FACE OF SAID WAFER, (C) AN OHMIC CONTACT MOUNTED ON THE OPPOSING FACE OF SAID WAFER AND HAVING A CONTACT AREA AT LEAST 10 TIMES AS LARGE AS THE CONTACT AREA OF SAID PROBE, AND (D) MEANS FOR MOUNTING SAID WAFER PROBE AND CONTACT IN THE WAVEGUIDE WITH SAID PROBE BEING POSITIONED AT A POINT OF MAXIMUM FIELD INTENSITY THEREIN, A VOLTAGE WHICH IS A FUNCTION OF THE MICROWAVE POWER IN THE WAVEGUIDE BEING GENERATED BETWEEN SAID PROBE AND CONTACT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |