Patent US3180986A successfully refreshed from Google Patents.
US3180986A
Expired / Lapsed
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Measuring systems for electron diffraction patterns
Assignee: ENGINEERING LAB
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Filing: 1962-08-13
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Granted: 1965-04-27
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Expires: 1982-08-13
Abstract
No abstract record available.
Inventors
- 👤 Grigson Christopher Wi Baisely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:03
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/26; H01J37/295
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
APPARATUS FOR OBTAINING AND MEASURING ELECTRON DIFFRACTION PATTERNS FROM A SPECIMEN COMPRISING AN ELECTRON GUN FOR EMITTING AN INCIDENT BEAM OF ELECTRONS WHICH PASS THROUGH THE SPECIMEN AND THUS FORM A MAIN UNDIFFRACTED BEAM OF ELECTRONS AND AT LEAST ONE DIFFRACTED BEAM OF ELECTRONS, ELECTRON DEFLECTING MEANS FOR DEFLECTING THE BEAM OF ELECTRONS AFTER THEY HAVE PASSED THROUGH THE SPECIMEN, AN OSCILLATOR SUPPLYING A SCANNING WAVEFORM TO THE ELECTRON DEFLECTING MEANS AT A RATE OF BETWEEN 0.1 CYCLE PER SECOND AND 500 CYCLES PER SECOND, A PLATE ON WHICH THE ELECTRONS IMPINGE, SAID PLATE BEING LOCATED DOWNSTREAM FROM THE ELECTRON DEFLECTING MEANS AND HAV-
Claim 2
Dependent Claim
104 words
APPARATUS FOR OBTAINING AND MEASURING ELECTRON DIFFRACTION PATTERNS FROM A SPECIMEN COMPRISING AN ELECTRON GUN FOR EMITTING AN INCIDENT BEAM OF ELECTRONS WHICH PASS THROUGH THE SPECIMEN AND THUS FORM A MAIN UNDIFFRACTED BEAM OF ELECTRONS AND AT LEAST ONE DIFFRACTED BEAM OF ELECTRONS, ELECTRON DEFLECTING MEANS FOR DEFLECTING THE BEAM OF ELECTRONS AFTER THEY HAVE PASSED THROUGH THE SPECIMEN, AN OSCILLATOR SUPPLYING A SCANNING WAVEFORM TO THE ELECTRON DEFLECTING MEANS AT A RATE OF BETWEEN 0.1 CYCLE PER SECOND AND 500 CYCLES PER SECOND, A PLATE ON WHICH THE ELECTRONS IMPINGE, SAID PLATE BEING LOCATED DOWNSTREAM FROM THE ELECTRON DEFLECTING MEANS AND HAV-
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) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |