Patent US2735919A successfully refreshed from Google Patents.
US2735919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
shower
Assignee: —
•
Filing: —
•
Granted: 1956-02-21
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Expires: 1973-02-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:49
CPC Classifications
H; H10; H10W; H10W99/00; H10F; H10F99/00; H10P; H10P95/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE MEHTOD OF MAKING A PHOTOTRANSISTOR WHICH COMPRISES, MELTING A PIECE OF TRANSISTOR IMPURITY MATERIAL TO A LOCALIZED REGION OF A SEMI-CONDUCTOR MATERIAL TO FORM A PHOTOTRANSISTOR ALLOY JUNCTION, ATTACHING A LEAD-IN WIRE TO THE ALLOY MATERIAL AT A POINT OFFSET FROM THE MARGIN THEREOF, AND THEN SLICING THROUGH SAID JUNCTION AT A POINT BETWEEN THE MARGIN AND THE PLACE OF CONTACT OF SAID LEADIN WIRE THEREWITH, AND THENCE THROUGH THE SEMI-CONDUCTOR TO FORM A SUBSTANTIALLY FLAT EXPOSURE PHOTOTRANSISTOR SURFACE WHICH IS FREE FROM LIGHT OBSTRUCTION BY SAID WIRE.
Claim 2
Dependent Claim
89 words
THE MEHTOD OF MAKING A PHOTOTRANSISTOR WHICH COMPRISES, MELTING A PIECE OF TRANSISTOR IMPURITY MATERIAL TO A LOCALIZED REGION OF A SEMI-CONDUCTOR MATERIAL TO FORM A PHOTOTRANSISTOR ALLOY JUNCTION, ATTACHING A LEAD-IN WIRE TO THE ALLOY MATERIAL AT A POINT OFFSET FROM THE MARGIN THEREOF, AND THEN SLICING THROUGH SAID JUNCTION AT A POINT BETWEEN THE MARGIN AND THE PLACE OF CONTACT OF SAID LEADIN WIRE THEREWITH, AND THENCE THROUGH THE SEMI-CONDUCTOR TO FORM A SUBSTANTIALLY FLAT EXPOSURE PHOTOTRANSISTOR SURFACE WHICH IS FREE FROM LIGHT OBSTRUCTION BY SAID WIRE.
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) | 1959-02-20 | 1959-08-22 | 1960-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-20 | 1963-08-22 | 1964-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-20 | 1967-08-22 | 1968-02-21 | $7700.00 | Window Closed / Lapsed |