US3563659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1968-02-08
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Granted: 1971-02-16
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Expires: 1988-02-08
Abstract
Abstract A FOCAL ISOLATION MONOCHROMATOR EMPLOYING THE PRINCIPLE OF CHROMATIC ABERRATION IN THAT SEQUENTIAL IMAGE FORMATIONS BY REFRACTION MAGNIFY THE SPREAD OF IMAGE POINTS OF DIFFERENT WAVELENGTHS AS FORMED BY THE IMAGING SYSTEM ALONG THE OPTICAL AXIS AND FROM A HETERCHROMATIC LIGHT SOURCE. D R A W I N G
Inventors
- 👤 James S Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:31
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |