Patent US3340358A successfully refreshed from Google Patents.
US3340358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode-ray tube
Assignee: US Philips Corp
•
Filing: 1963-01-28
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Granted: 1967-09-05
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Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Gier Johannes De
- 👤 Nienhuis Willem Fokko
- 👤 Boer Floris De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:22
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
61 words
A CATHODE-RAY TUBE COMPRISING A TRANSPARENT WINDOW PORTION AND AN ADJOINING CONE PORTION, AN ENVELOPE SPACED FROM AND SURROUNDING A PORTION OF THE CONE PORTION OF THE TUBE AND HAVING A PORTION FORMING A FRAME FOR THE TRANSPARENT WINDOW PORTION, SAID LATTER PORTION OF SAID ENVELOPE BEING CONSTITUTED OF A HARD INSULATING SYNTHETIC RESIN, AND A NON-ELASTIC, COHERENT MASS OF SULFUR
References Cited (Backward Citations)
US2756892A
Cited
US1641403A
Cited
US1981141A
Cited
US2785820A
Cited
US3007833A
Cited
US3097061A
Cited
US3206056A
Cited
US3310194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |