US3071280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode-ray tube envelope
Assignee: OI Glass Inc
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Filing: 1960-04-18
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Granted: 1963-01-01
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Expires: 1980-04-18
Abstract
No abstract record available.
Inventors
- 👤 Ray W Maybew
- 👤 Rol L Vogelophl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:14
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A TELEVISION PICTURE TUBE ENVELOPE COMPRISING A SUBSTANTIALLY FUNNEL-SHAPED HOLLOW GLASS BODY HAVING FLARING OUTWARDLY-CONVEX SIDEWALLS EXTENDING BETWEEN ITS LARGER AND SMALLER ENDS, SAID LARGER END HAVING A LIGHT-TRANSMITTING VIEWING SCREEN PORTION, THE EXTERIOR SURFACES OF SAID SIDEWALLS OF SUBSTANTIALLY MAXIMUM CROSS-SECTIONAL CONTOUR OF SAID GLASS BODY ADJACENT SAID SCREEN PORTION HAVING A SERIES OF INTEGRAL PROJECTIONS EXTENDING AT LEAST PARTIALLY AROUND SAID ENVELOPE.
Claim 2
Dependent Claim
64 words
A TELEVISION PICTURE TUBE ENVELOPE COMPRISING A SUBSTANTIALLY FUNNEL-SHAPED HOLLOW GLASS BODY HAVING FLARING OUTWARDLY-CONVEX SIDEWALLS EXTENDING BETWEEN ITS LARGER AND SMALLER ENDS, SAID LARGER END HAVING A LIGHT-TRANSMITTING VIEWING SCREEN PORTION, THE EXTERIOR SURFACES OF SAID SIDEWALLS OF SUBSTANTIALLY MAXIMUM CROSS-SECTIONAL CONTOUR OF SAID GLASS BODY ADJACENT SAID SCREEN PORTION HAVING A SERIES OF INTEGRAL PROJECTIONS EXTENDING AT LEAST PARTIALLY AROUND SAID ENVELOPE.
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |