US3486130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ring laser having a quarter wave plate for rotating the plane of polarization of light which is reflected back into the ring from the combining optics
Assignee: Unisys Corp
•
Filing: 1966-09-20
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Granted: 1969-12-23
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Expires: 1986-09-20
Abstract
No abstract record available.
Inventors
- 👤 Warren M Macek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:58
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/05; H01S3/08; H01S3/081; H01S3/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3346319A
Cited
US3323411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |