US3305807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convergence apparatus with convergence members on opposite surfaces of flat members
Assignee: General Electric Co
•
Filing: 1965-07-02
•
Granted: 1967-02-21
•
Expires: 1985-07-02
Abstract
No abstract record available.
Inventors
- 👤 Robert B Ashley
- 👤 Raymond S Joseph
- 👤 James V Vaccaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:14
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/702; H01J29/705
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
AN ELECTRON BEAM CONVERGENCE APPARATUS FOR USE WITH A CATHODE RAY TUBE INCLUDING A NECK TRAVERSED BY A PLURALITY OF ELECTRON BEAMS, SAID APPARATUS COMPRISING; (A) A GENERALLY CYLINDRICAL MEMBER ADAPTED TO ENCIRCLE THE NECK OF THE CATHODE RAY TUBE IN ENGAGEMENT THEREWITH, (B) A GENERALLY FLAT BODY MEMBER INTEGRAL WITH SAID GENERALLY CYLINDRICAL MEMBER AND EXTENDING GENERALLY TRANSVERSE THERETO, (C) A PLURALITY OF MAGNETIC CORE MEMBERS MOUNTED TO OPPOSITE SURFACES OF SAID BODY MEMBER AND ARRANGED ABOUT SAID CYLINDRIAL MEMBER IN SPACED RELATIONSHIP ONE WITH THE OTHER TO CONTROL THE CONVERGENCE OF THE ELECTRON BEAMS.
Claim 2
Dependent Claim
96 words
AN ELECTRON BEAM CONVERGENCE APPARATUS FOR USE WITH A CATHODE RAY TUBE INCLUDING A NECK TRAVERSED BY A PLURALITY OF ELECTRON BEAMS, SAID APPARATUS COMPRISING; (A) A GENERALLY CYLINDRICAL MEMBER ADAPTED TO ENCIRCLE THE NECK OF THE CATHODE RAY TUBE IN ENGAGEMENT THEREWITH, (B) A GENERALLY FLAT BODY MEMBER INTEGRAL WITH SAID GENERALLY CYLINDRICAL MEMBER AND EXTENDING GENERALLY TRANSVERSE THERETO, (C) A PLURALITY OF MAGNETIC CORE MEMBERS MOUNTED TO OPPOSITE SURFACES OF SAID BODY MEMBER AND ARRANGED ABOUT SAID CYLINDRIAL MEMBER IN SPACED RELATIONSHIP ONE WITH THE OTHER TO CONTROL THE CONVERGENCE OF THE ELECTRON BEAMS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |