US3229087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron microanalyzer and monitoring system
Assignee: First Pennsylvania Banking and Trust Co
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Filing: 1961-09-25
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Granted: 1966-01-11
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Expires: 1981-09-25
Abstract
No abstract record available.
Inventors
- 👤 Shapiro Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:59
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/24; H01J37/244; H01J37/252; H01J37/256; H01J2237/00; H01J2237/244; H01J2237/24485; H01J2237/245; H01J2237/24507
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
AN ELECTRON MICROANALYZER COMPRISING MEANS FOR DIRECTING A BEAM OF CHARGED PARTICLES TO A SPECIMEN AND FOR DEFLECTING THE BEAM IN A PATTERN OVER A SURFACE OF THE SPECIMEN AND FOR DERIVING ELECTRICAL SIGNALS CHARACTERISTIC OF EMISSIONS FROM THE SPECIMEN PRODUCED BY THE BEAM, A LIGHT DISPLAY DEVICE HAVING MEANS FOR PRODUCING A MOVING LIGHT SPOT OVER A PATTERN SYNCHRONOUSLY WITH THE DEFLECTION OF THE BEAM, MEANS FOR DERIVING ELECTRICAL SIGNALS CHARACTERISTIC OF THE MOVING LIGHT SPOT INTENSITY, AND MEANS FOR COMPARING THE LIGHT INTENSITY SIGNALS WITH THE SPECIMEN SIGNALS AND FOR CONTROLLING THE INTENSITY OF THE
Claim 2
Dependent Claim
97 words
AN ELECTRON MICROANALYZER COMPRISING MEANS FOR DIRECTING A BEAM OF CHARGED PARTICLES TO A SPECIMEN AND FOR DEFLECTING THE BEAM IN A PATTERN OVER A SURFACE OF THE SPECIMEN AND FOR DERIVING ELECTRICAL SIGNALS CHARACTERISTIC OF EMISSIONS FROM THE SPECIMEN PRODUCED BY THE BEAM, A LIGHT DISPLAY DEVICE HAVING MEANS FOR PRODUCING A MOVING LIGHT SPOT OVER A PATTERN SYNCHRONOUSLY WITH THE DEFLECTION OF THE BEAM, MEANS FOR DERIVING ELECTRICAL SIGNALS CHARACTERISTIC OF THE MOVING LIGHT SPOT INTENSITY, AND MEANS FOR COMPARING THE LIGHT INTENSITY SIGNALS WITH THE SPECIMEN SIGNALS AND FOR CONTROLLING THE INTENSITY OF THE
References Cited (Backward Citations)
US2257774A
Cited
US2418029A
Cited
US2751275A
Cited
US3041932A
Cited
US2916621A
Cited
US3067360A
Cited
US2984537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |