US2753458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron microscope
Assignee: Individual
•
Filing: 1954-07-27
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Granted: 1956-07-03
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Expires: 1974-07-27
Abstract
No abstract record available.
Inventors
- 👤 Kazato Kenji
- 👤 Ito Kazuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:42
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/20; H01J37/04; H01J37/10; H01J37/12; Y; Y10; Y10S; Y10S164/00; Y10S164/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN ELECTRON MICROSCOPE COMPRISING IN COMBINATION HEATING MEANS WHICH ARE ARRANGED IN THE COLUMN OF A MICROSCOPE FOR HEATING A SPECIMEN, A SPECIMEN HOLDER FOR HOLDING SAID SPECIMEN IN THE PASSAGE OF THE ELECTRON BEAM DURING HEAT TREATMENT AND HEAT SHIELDING MEANS LOCATED ADJACENT SAID HEATING MEANS FOR PREVENTING OBJECTIVE POLE PIECES FROM BEING OVERHEATED BY SAID HEATING MEANS, THEREBY ENABLING THAT CONTINUOUS HEATING CONDITIONS OF SAID SPECIMEN IS OBSERVED.
Claim 2
Dependent Claim
70 words
AN ELECTRON MICROSCOPE COMPRISING IN COMBINATION HEATING MEANS WHICH ARE ARRANGED IN THE COLUMN OF A MICROSCOPE FOR HEATING A SPECIMEN, A SPECIMEN HOLDER FOR HOLDING SAID SPECIMEN IN THE PASSAGE OF THE ELECTRON BEAM DURING HEAT TREATMENT AND HEAT SHIELDING MEANS LOCATED ADJACENT SAID HEATING MEANS FOR PREVENTING OBJECTIVE POLE PIECES FROM BEING OVERHEATED BY SAID HEATING MEANS, THEREBY ENABLING THAT CONTINUOUS HEATING CONDITIONS OF SAID SPECIMEN IS OBSERVED.
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) | 1959-07-03 | 1960-01-02 | 1960-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-03 | 1964-01-02 | 1964-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-03 | 1968-01-02 | 1968-07-03 | $7700.00 | Window Closed / Lapsed |