US3606522A
Expired / Lapsed
US
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Optical frequency waveguide and transmission system
Assignee: National Aeronautics and Space Administration
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Filing: 1969-01-24
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Granted: 1971-09-20
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Expires: 1989-01-24
Abstract
Abstract A METHOD AND SYSTEM OF TRANSMITTING AND DISTRIBUTING OPTICAL FREQUENCY RADIATION ARE DISCLOSED. THE POWER LEVEL OF THE RADIATION BEAM IS MAINTAINED AT A LEVEL WHICH IS A FUNCTION OF THE PRESSURE AND DIELECTRIC CONSTANT OF A GAS THROUGH WHICH THE BEAM IS TRANSMITTED. THE BEAM THROUGH THE GAS GENERATES ITS OWN WAVEGUIDE TO PREVENT BEAM DIVERGENCE THROUGH THE GAS.
Inventors
- 👤 Charles H Townes
- 👤 Raymond Y Chiao
- 👤 Elsa M Garmire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:43
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/12; B23K26/127; B23K26/128; B23K26/02; B23K26/06; B23K26/064; B23K26/0648; B23K26/0665; B23K26/123; G; G02; G02B; G02B3/00; G02B3/12; G02B6/00; G02B6/10; G02F; G02F1/00; G02F1/35; G02F1/3511
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |