US3345529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam column with demountable flux-generating assembly and beam-forming elements
Assignee: International Business Machines Corp
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Filing: 1966-08-29
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Granted: 1967-10-03
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Expires: 1986-08-29
Abstract
No abstract record available.
Inventors
- 👤 Karl H Loeffler
- 👤 Erik O J Salbu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:18
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/52; G; G11; G11B; G11B7/00; G11B7/08; G11B7/09; G11B7/0908; G11B7/0917; G11C; G11C13/00; G11C13/04; G11C13/048; H01J29/82; H01J37/00; H01J37/02; H01J37/04; H01J37/09; H01J37/21; H01J37/244; H01J37/30; H01J37/304; H01J2237/00; H01J2237/245; H01J2237/24507
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
AN ELECTRON BEAM COLUMN COMPRISING: A SOURCE TO PRODUCE A BEAM OF ELECTRONS FOR TRANSMISSION ALONG A PRE-SELECTED AXIS, A FLUX GENERATING ASSEMBLY INCLUDING A PLURALITY OF FLUX TRANSMITTING CORES SPACED ALONG SAID AXIS, SAID CORES HAVING ALIGNED OPENINGS FOR THE PASSAGE OF SAID BEAM, A NON-MAGNETIC TUBE SLIDEABLY AND REMOVABLY FITTED INTO SAID OPENINGS AND BEING SIZED TO FIT CLOSELY ADJACENT SAID CORES AND HAVING A CENTER OPENING COINCIDING WITH SAID AXIS WHEN FITTED INTO SAID CORE OPENINGS, A PLURALITY OF BEAM-FORMING ELEMENTS FORMED TO SLIDE INTO SAID TUBE IN SIDE-BY-SIDE RELATIONSHIP TO REGULATE THE BEAM, AND
Claim 2
Dependent Claim
98 words
AN ELECTRON BEAM COLUMN COMPRISING: A SOURCE TO PRODUCE A BEAM OF ELECTRONS FOR TRANSMISSION ALONG A PRE-SELECTED AXIS, A FLUX GENERATING ASSEMBLY INCLUDING A PLURALITY OF FLUX TRANSMITTING CORES SPACED ALONG SAID AXIS, SAID CORES HAVING ALIGNED OPENINGS FOR THE PASSAGE OF SAID BEAM, A NON-MAGNETIC TUBE SLIDEABLY AND REMOVABLY FITTED INTO SAID OPENINGS AND BEING SIZED TO FIT CLOSELY ADJACENT SAID CORES AND HAVING A CENTER OPENING COINCIDING WITH SAID AXIS WHEN FITTED INTO SAID CORE OPENINGS, A PLURALITY OF BEAM-FORMING ELEMENTS FORMED TO SLIDE INTO SAID TUBE IN SIDE-BY-SIDE RELATIONSHIP TO REGULATE THE BEAM, AND
References Cited (Backward Citations)
US2468403A
Cited
US3150256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |