US3109063A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube display apparatus
Assignee: Decca Ltd
•
Filing: 1960-12-13
•
Granted: 1963-10-29
•
Expires: 1980-12-13
Abstract
No abstract record available.
Inventors
- 👤 Parker Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:22
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/202
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
62 words
CATHODE RAY TUBE DISPLAY APPARATUS COMPRISING (A) A CATHODE RAY TUBE HAVING A DISPLAY SCREEN, (B) A CIRCULARLY POLARIZING FILTER ARRANGED IN FRONT OF THE DISPLAY SCREEN, SAID FILTER BEING OF CIRCULAR CYLINDRICAL FORM, AND (C) A HOOD EXTENDING AROUND THE FILTER AND HAVING A VIEWING APERTURE FACING SAID SCREEN, THE HOOD HAVING A DIVERGENT FORM IN THE DIRECTION AWAY FROM THE
References Cited (Backward Citations)
CA593760A
Cited
FR817271A
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US2251984A
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FR856256A
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US2566830A
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GB708365A
Cited
US2819459A
Cited
FR1163210A
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US3001015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |