US3087055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particle spectrometers with high transmission, dispersion and resolution
Assignee: Geophysics Corp of America
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Filing: 1959-12-09
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Granted: 1963-04-23
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Expires: 1979-12-09
Abstract
No abstract record available.
Inventors
- 👤 Helmut J Liebl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:02
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/26; H01J49/28; H01J49/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
A SPECTROMETER FOR ELECTRICALLY CHARGED PARTICLES, COMPRISING AN ENTRANCE OPENING, MEANS FOR FORMING AT LEAST ONE MAGNETIC SECTOR FIELD, AND MEANS FOR COLLECTING CHARGED PARTICLES AFTER PASSING SAID MAGNETIC SECTOR FIELD, SAID FORMING MEANS PROVIDING A SECTOR FIELD HAVING ELECTRO-OPTICAL PROPERTIES SUCH THAT CHARGED PARTICLES TRAVELLING FROM THE ENTRANCE OPENING TO THE COLLECTING MEANS ARE FOCUSED BOTH AXIALLY AND RADIALLY AND IMAGE SAID ENTRANCE OPENING SUBSTANTIALLY STIGMATICALLY ONTO SAID COLLECTING MEANS WHILE FORMING MORE AXIAL THAN RADIAL INTERMEDIATE IMAGES.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |