US3560077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable transmission passive q-switch
Assignee: Raytheon Co
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Filing: 1968-02-19
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Granted: 1971-02-02
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Expires: 1988-02-19
Abstract
Abstract THIS IS A PASSIVE Q-SWITCH THAT MAY BE ADJUSTED TO PROVIDE VARIABLE TRANSMISSION CHARACTERISTICS. IN ITS MOST BASIC FORM, IT MAY CONSIST OF A CELL WITH SPACED AND PARALLEL OPTICALLY FLAT WINDOWS THAT CONTAINS A SOLUTION OF A PASSIVE Q-SWITCH MATEIRAL SUCH AS CRYPOCYANINE DISSOLVED IN ISOPROPYL ALCOHOL. THE TRANSMISSION OR ABSORPTION OF THE SWITCH IS VARIED BY CHANGING THE THICKNESS OF THE ABSORBING LIQUID LAYER BETWEEN THE WINDOWS.
Inventors
- 👤 Walter R Sooy
- 👤 David P Bortfeld
- 👤 Richard E Bradbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:24
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/11; H01S3/1123; H01S3/113
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |