US3397316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical frequency-changing devices and materials for use therein
Assignee: AVIATION UK
•
Filing: 1964-09-18
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Granted: 1968-08-13
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Expires: 1984-09-18
Abstract
No abstract record available.
Inventors
- 👤 Michael R Brown
- 👤 Nash William Brian
- 👤 Phillips Geoffrey
- 👤 William A Shand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:03
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/23; H01S3/2308; C; C09; C09K; C09K11/00; C09K11/08; C09K11/74; C09K11/7428; C09K11/77; C09K11/7704; C09K11/7705; F; F21; F21K; F21K2/00; F21K2/005; G; G02; G02F; G02F2/00; G02F2/02; H01S3/05; H01S3/06; H01S3/0602
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3062959A
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US3203899A
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US3062962A
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US3070698A
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US3130254A
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US3231746A
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US3219585A
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US3142760A
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US3258715A
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US3258716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |