Patent US1915292A successfully refreshed from Google Patents.
US3221133A
Expired / Lapsed
US
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Electron microscope with means for treating and observing specimens
Assignee: Jeol Ltd
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Filing: 1963-04-02
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Granted: 1965-11-30
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Expires: 1983-04-02
Abstract
No abstract record available.
Inventors
- 👤 Kazato Ken-Ji
- 👤 Ashinuma Kan-Ichi
- 👤 Okazaki Ikio
- 👤 Hokari Taiji
- 👤 Takahashi Ko-Ichi
- 👤 Yoshino Hirokazu
- 👤 Tanaka Kazumichi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:31
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/04; H01J37/26; H01J37/30; H01J37/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
AN ELECTRON MICROSCOPE FOR TREATING AND OBSERVING SPECIMENS COMPRISING, (A) A SINGLE SOURC OF ELECTRONS, (B) MEANS FOR FOCUSING ELEXTRONS FROM SAID SOURCE INTO A TREATING BEAM WHICH STRIKES THE SURFACE OF A SPECIMEN AT THE POINT OF MINIMUM CROSS-SECTION OF THE BEAM TO PRODUCE A CHANGE IN THE SHAPED OF SAID SPECIMEN BY THE REMOVAL OF PORTIONS THEREOF
Claim 2
Dependent Claim
59 words
AN ELECTRON MICROSCOPE FOR TREATING AND OBSERVING SPECIMENS COMPRISING, (A) A SINGLE SOURC OF ELECTRONS, (B) MEANS FOR FOCUSING ELEXTRONS FROM SAID SOURCE INTO A TREATING BEAM WHICH STRIKES THE SURFACE OF A SPECIMEN AT THE POINT OF MINIMUM CROSS-SECTION OF THE BEAM TO PRODUCE A CHANGE IN THE SHAPED OF SAID SPECIMEN BY THE REMOVAL OF PORTIONS THEREOF
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |