US3226246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing display screens for cathode-ray tubes
Assignee: US Philips Corp
•
Filing: 1961-06-09
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Granted: 1965-12-28
•
Expires: 1981-06-09
Abstract
No abstract record available.
Inventors
- 👤 Vermeulen Gerardus A Wilhelmus
- 👤 Gravesteijn Jacobus Cornelis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:22
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/187; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2271
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A METHOD OF MANUFACTURING A DISPLAY SCREEN FOR A CATHODE RAY TUBE COMPRISING THE STEPS OF PLACING OVER A TRANSPARENT SUPPORT HAVING SELECTED AREAS THEREOF COVERED WITH A LUMINESCENT MATERIAL A FILTER MATERIAL RELATIVELY OPAQUE TO RADIATION WHICH IS TRANSMITTED THROUGH THE SUPPORT, COVERING THE SUPPORT WITH A PHOTOSENSITIVE HARDENABLE BINDER, EXPOSING THE BINDER THROUGH THE SUPPORT TO RADIATION WHICH IS CAPABLE OF HARDENING THE BINDER IN AREAS FREE OF LUMINESCENT MATERIAL, REMOVING THE UNEX-
Claim 2
Independent Claim
75 words
A METHOD OF MANUFACTURING A DISPLAY SCREEN FOR A CATHODE RAY TUBE COMPRISING THE STEPS OF PLACING OVER A TRANSPARENT SUPPORT HAVING SELECTED AREAS THEREOF COVERED WITH A LUMINESCENT MATERIAL A FILTER MATERIAL RELATIVELY OPAQUE TO RADIATION WHICH IS TRANSMITTED THROUGH THE SUPPORT, COVERING THE SUPPORT WITH A PHOTOSENSITIVE HARDENABLE BINDER, EXPOSING THE BINDER THROUGH THE SUPPORT TO RADIATION WHICH IS CAPABLE OF HARDENING THE BINDER IN AREAS FREE OF LUMINESCENT MATERIAL, REMOVING THE UNEX-
References Cited (Backward Citations)
US2310863A
Cited
US2629657A
Cited
US3080231A
Cited
US2828435A
Cited
US2992107A
Cited
GB795354A
Cited
US2837429A
Cited
US3025161A
Cited
US2959483A
Cited
US2932570A
Cited
US2897089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |