US3310194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube envelope
Assignee: Societe des Verreries Industrielles Reunies du Loing
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Filing: 1962-04-23
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Granted: 1967-03-21
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Expires: 1982-04-23
Abstract
No abstract record available.
Inventors
- 👤 Georges M Bradu
- 👤 Pierre F Grosborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:15
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A CATHODE RAY TUBE COMPRISING A GLASS ENVELOPE COMPOSED OF A VIEWING SCREEN PORTION AND A FUNNEL PORTION OF GENERALLY CONICAL SHAPE, THE IMPROVEMENT THAT CONSISTS IN A BAND ENCIRCLING THE ENVELOPE AND EXTENDING FROM A PLANE PASSING THROUGH THE VIEWING SCREEN PERIPHERY TO A PLANE ADJACENT THE LARGER END OF THE FUNNEL, THE ENCIRCLING BAND COMPRISING A METAL OUTER SHELL MEMBER HAVING AN INNER SURFACE SPACED FROM THE ENVELOPE AND A
Claim 2
Dependent Claim
73 words
IN A CATHODE RAY TUBE COMPRISING A GLASS ENVELOPE COMPOSED OF A VIEWING SCREEN PORTION AND A FUNNEL PORTION OF GENERALLY CONICAL SHAPE, THE IMPROVEMENT THAT CONSISTS IN A BAND ENCIRCLING THE ENVELOPE AND EXTENDING FROM A PLANE PASSING THROUGH THE VIEWING SCREEN PERIPHERY TO A PLANE ADJACENT THE LARGER END OF THE FUNNEL, THE ENCIRCLING BAND COMPRISING A METAL OUTER SHELL MEMBER HAVING AN INNER SURFACE SPACED FROM THE ENVELOPE AND A
References Cited (Backward Citations)
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US2756892A
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US2785820A
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US2972783A
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US3007833A
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US3166211A
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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) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |