US2739911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of depositing an emissive coating on cathode structures
Assignee: National Video Corp
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Filing: 1953-06-05
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Granted: 1956-03-27
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Expires: 1973-06-05
Abstract
No abstract record available.
Inventors
- 👤 Andriulis Vytautas
- 👤 Anacleto D Giacchetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:50
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/02; H01J9/04; H01J9/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE METHOD OF DEPOSITING AN EMISSIVE CATHODIC COATING UPON THE FLAT END SURFACE OF A CUP SHAPED CATHODE SUPPORT WHICH COMPRISES SUPPORTING THE CATHODE SUPPORT IN A CONFINED ZONE LARGER IN DIAMETER THAN THE CATHODE SUPPORT WITH THE END SURFACE OF THE CATHODE SUPPORT UPPERMOST AND HORIZONTAL AND ABOVE THE BOTTOM OF THE ZONE, INTRODUCING INTO THE ZONE A SUSPENSION CONTAINING A PARTICULATE CATHODIC MATERIAL AND BINDER, MAINTAINING QUIESCENT CONDITIONS DURING SETTLING OF THE MATERIAL ON SAID END, REMOVING THE EXCESS SUSPENSION AND HARDENING THE COATING WHILE THE CATHODE IS THUS SUPPORTED.
Claim 2
Independent Claim
92 words
THE METHOD OF DEPOSITING AN EMISSIVE CATHODIC COATING UPON THE FLAT END SURFACE OF A CUP SHAPED CATHODE SUPPORT WHICH COMPRISES SUPPORTING THE CATHODE SUPPORT IN A CONFINED ZONE LARGER IN DIAMETER THAN THE CATHODE SUPPORT WITH THE END SURFACE OF THE CATHODE SUPPORT UPPERMOST AND HORIZONTAL AND ABOVE THE BOTTOM OF THE ZONE, INTRODUCING INTO THE ZONE A SUSPENSION CONTAINING A PARTICULATE CATHODIC MATERIAL AND BINDER, MAINTAINING QUIESCENT CONDITIONS DURING SETTLING OF THE MATERIAL ON SAID END, REMOVING THE EXCESS SUSPENSION AND HARDENING THE COATING WHILE THE CATHODE IS THUS SUPPORTED.
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) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |