US3177770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light modulation by microwaves
Assignee: J D HERREBAUDT
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Filing: 1961-10-17
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Granted: 1965-04-13
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Expires: 1981-10-17
Abstract
No abstract record available.
Inventors
- 👤 Okaya Akira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:37
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/29
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
APPARATUS FOR MODULATING A LIGHT BEAM, INCLUDING A SOURCE OF LIGHT, A RECEIVER TO WHICH THE LIGHT IS SUPPLIED, A SPACE BETWEEN THE SOURCE AND THE RECEIVER AND THROUGH WHICH THE LIGHT BEAM PASSES, AND A TRANSPARENT SOLID DIELECTRIC RESONATOR WITHIN THE SPACE AND IN THE PATH OF THE LIGHT, SAID DIELECTRIC RESONATOR BEING RESONANT TO ELECTROMAGNETIC WAVES OF A SELECTED FREQUENCY FOR CHANGING THE INDEX OF REFRACTION OF THE RESONATOR, AND MEANS FOR DIRECTING ELECTROMAGNETIC WAVES ON TO THE RESONATOR.
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) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |