US3258341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1963-05-31
•
Granted: 1966-06-28
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Expires: 1983-05-31
Abstract
No abstract record available.
Inventors
- 👤 Riemerschmid Anton
- 👤 Eckerlin Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:29
CPC Classifications
G; G03; G03F; G03F5/00; G03F5/14; G03F5/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A CONTACT SCREEN COMPRISING A SUBSTANTIALLY TRANSPARENT SHEET AND A SURFACE LAYER ON SAID SHEET, SAID SURFACE LAYER INCLUDING A GRADUALLY VARYING GREY TONE PORTION EXTENDING FROM EACH OPAQUE DOT TOWARDS EACH PORTION EXTENDING FROM EACH OPAQUE DOT TOWARDS EACH DOT ADJACENT THERETO, EACH GREY TONE PORTION DIMINISHING TO A MINIMUM OPACITY ZONE BETWEEN EACH OPAQUE DOT AND THE CORRESPONDING ADJACENT DOT, THE MINIMUM OPACITY ZONES SURROUNDING RESPECTIVE OF SAID OPAQUE DOTS, SAID SURFACE LAYER FURTHER HAVING SEMI-TRANSPARENT ZONES DISTRIBUTED ABOUT THE OPAQUE DOTS AND LOCATED BETWEEN SAID MINIMUM OPACITY ZONES, SAID SURFACE LAYER FURTHER HAVING SUBSTANTIALLY FULLY TRANSPARENT SPOTS LOCATED IN THE SEMI-TRANSPARENT ZONES, SAID SEMI-TRANSPARENT ZONES HAVING ABOUT .5 TO 5% THE OPACITY OF SAID OPAQUE DOTS, THE AREA OF EACH TRANSPARENT SPOT TO THE AREA OF THE ASSOCIATED SEMI-TRANSPARENT ZONE BEING ABOUT 1:20 TO 1:60.
Claim 2
Dependent Claim
138 words
A CONTACT SCREEN COMPRISING A SUBSTANTIALLY TRANSPARENT SHEET AND A SURFACE LAYER ON SAID SHEET, SAID SURFACE LAYER INCLUDING A GRADUALLY VARYING GREY TONE PORTION EXTENDING FROM EACH OPAQUE DOT TOWARDS EACH PORTION EXTENDING FROM EACH OPAQUE DOT TOWARDS EACH DOT ADJACENT THERETO, EACH GREY TONE PORTION DIMINISHING TO A MINIMUM OPACITY ZONE BETWEEN EACH OPAQUE DOT AND THE CORRESPONDING ADJACENT DOT, THE MINIMUM OPACITY ZONES SURROUNDING RESPECTIVE OF SAID OPAQUE DOTS, SAID SURFACE LAYER FURTHER HAVING SEMI-TRANSPARENT ZONES DISTRIBUTED ABOUT THE OPAQUE DOTS AND LOCATED BETWEEN SAID MINIMUM OPACITY ZONES, SAID SURFACE LAYER FURTHER HAVING SUBSTANTIALLY FULLY TRANSPARENT SPOTS LOCATED IN THE SEMI-TRANSPARENT ZONES, SAID SEMI-TRANSPARENT ZONES HAVING ABOUT .5 TO 5% THE OPACITY OF SAID OPAQUE DOTS, THE AREA OF EACH TRANSPARENT SPOT TO THE AREA OF THE ASSOCIATED SEMI-TRANSPARENT ZONE BEING ABOUT 1:20 TO 1:60.
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) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |