US3346867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical line recorder
Assignee: Individual
•
Filing: 1965-05-06
•
Granted: 1967-10-10
•
Expires: 1985-05-06
Abstract
No abstract record available.
Inventors
- 👤 Schwarzer Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:23
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A LINE RECORDER TO RECORD TRACES ON A SURFACE HAVING A CURRENT SENSITIVE RECORDING MEDIUM (A) A THIN LAYER (D) OF PHOTOSENSITIVE RESISTANCE MATERIAL HAVING A DARK RESISTANCE LARGE WITH RESPECT TO THE RESISTANCE OF THE MATERIAL WHERE ILLUMINATED; MEANS ESTABLISHING ELECTRICAL CONTACT (FIGS. 1-3: E; FIG. 4: O) OF ONE SIDE OF SAID LAYER OF PHOTOSENSITIVE RESISTANCE MATERIAL (D) WITH SAID RECORDING MEDIUM AND MEANS APPLYING A POTENTIAL DIFFERENCE (B;K) ACROSS THE OTHER SIDE OF SAID LAYER (D) OF PHOTOSENSITIVE RESISTANCE MATERIAL AND SAID RECORDING MEDIUM THE IMPROVEMENT COMPRISING AN ELECTRICAL CONDUCTOR MEMBER (C) HAVING AN ELECTRICAL CONDUCTIVITY IN A DIRECTION TRANSVERSE TO SAID SURFACE WHICH IS LARGE WITH RESPECT TO THE CONDUCTIVITY PARALLEL TO SAID SURFACE, SAID ELECTRICAL CONDUCTOR MEMBER (C) BEING IN SERIES CIRCUIT WITH SAID MEANS ESTABLISHING ELECTRICAL CONTACT (E,O) AND SAID POTENTIAL APPLYING MEANS (B,K).
Claim 2
Dependent Claim
141 words
IN A LINE RECORDER TO RECORD TRACES ON A SURFACE HAVING A CURRENT SENSITIVE RECORDING MEDIUM (A) A THIN LAYER (D) OF PHOTOSENSITIVE RESISTANCE MATERIAL HAVING A DARK RESISTANCE LARGE WITH RESPECT TO THE RESISTANCE OF THE MATERIAL WHERE ILLUMINATED; MEANS ESTABLISHING ELECTRICAL CONTACT (FIGS. 1-3: E; FIG. 4: O) OF ONE SIDE OF SAID LAYER OF PHOTOSENSITIVE RESISTANCE MATERIAL (D) WITH SAID RECORDING MEDIUM AND MEANS APPLYING A POTENTIAL DIFFERENCE (B;K) ACROSS THE OTHER SIDE OF SAID LAYER (D) OF PHOTOSENSITIVE RESISTANCE MATERIAL AND SAID RECORDING MEDIUM THE IMPROVEMENT COMPRISING AN ELECTRICAL CONDUCTOR MEMBER (C) HAVING AN ELECTRICAL CONDUCTIVITY IN A DIRECTION TRANSVERSE TO SAID SURFACE WHICH IS LARGE WITH RESPECT TO THE CONDUCTIVITY PARALLEL TO SAID SURFACE, SAID ELECTRICAL CONDUCTOR MEMBER (C) BEING IN SERIES CIRCUIT WITH SAID MEANS ESTABLISHING ELECTRICAL CONTACT (E,O) AND SAID POTENTIAL APPLYING MEANS (B,K).
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US2898468A
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US2925310A
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US2963335A
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US3082085A
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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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |