US3325675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three in-line gun magnetic convergence system
Assignee: Paramount Pictures Corp
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Filing: 1964-08-05
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Granted: 1967-06-13
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Expires: 1984-08-05
Abstract
No abstract record available.
Inventors
- 👤 Emil E Sanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:28
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/70; H01J29/701; H01J29/702
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A CATHODE-RAY TUBE COMPRISING AN ENVELOPE, A TARGET ELECTRODE, MEANS FOR DIRECTING A PLURALITY OF SUBSTANTIALLY COPLANAR ELECTRON BEAMS TOWARD SAID TARGET ELECTRODE, ONE OF SAID BEAMS CONSTITUTING A REFERENCE BEAM, FIRST MAGNETIC MEANS INCLUDING POLE PIECES INTERNAL AND EXTERNAL TO THE TUBE ENVELOPE FOR PRODUCING A FIRST MAGNETIC FIELD IN PROXIMITY TO THE OUTER ELECTRON BEAMS AND DISPOSED TO ALTER THEIR MOVEMENTS IN A FIRST DIRECTION, SECOND MAGNETIC MEANS INCLUDING POLE PIECES INTERNAL AND EXTERNAL TO THE TUBE ENVELOPE FOR PRODUCING A SECOND MAGNETIC FIELD IN PROXIMITY TO THE OUTER ELECTRON BEAMS AND DISPOSED TO ALTER THEIR MOVEMENTS IN A SECOND DIRECTION, AND ENERGIZING MEANS CONNECTED TO SAID MAGNETIC MEANS TO CAUSE THE EXCITATION THEREOF AND THEREBY CONTROL THE MOVEMENTS OF THE SAID OUTER BEAM INDEPENDENTLY OF SAID REFERENCE BEAM TO CAUSE THE CONVERGENCE OF ALL SAID BEAMS.
Claim 2
Dependent Claim
139 words
A CATHODE-RAY TUBE COMPRISING AN ENVELOPE, A TARGET ELECTRODE, MEANS FOR DIRECTING A PLURALITY OF SUBSTANTIALLY COPLANAR ELECTRON BEAMS TOWARD SAID TARGET ELECTRODE, ONE OF SAID BEAMS CONSTITUTING A REFERENCE BEAM, FIRST MAGNETIC MEANS INCLUDING POLE PIECES INTERNAL AND EXTERNAL TO THE TUBE ENVELOPE FOR PRODUCING A FIRST MAGNETIC FIELD IN PROXIMITY TO THE OUTER ELECTRON BEAMS AND DISPOSED TO ALTER THEIR MOVEMENTS IN A FIRST DIRECTION, SECOND MAGNETIC MEANS INCLUDING POLE PIECES INTERNAL AND EXTERNAL TO THE TUBE ENVELOPE FOR PRODUCING A SECOND MAGNETIC FIELD IN PROXIMITY TO THE OUTER ELECTRON BEAMS AND DISPOSED TO ALTER THEIR MOVEMENTS IN A SECOND DIRECTION, AND ENERGIZING MEANS CONNECTED TO SAID MAGNETIC MEANS TO CAUSE THE EXCITATION THEREOF AND THEREBY CONTROL THE MOVEMENTS OF THE SAID OUTER BEAM INDEPENDENTLY OF SAID REFERENCE BEAM TO CAUSE THE CONVERGENCE OF ALL SAID BEAMS.
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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |