US3712980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflector arrangement for attenuating selected components of spectral radiation
Assignee: Kollmorgen Corp
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Filing: 1971-01-25
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Granted: 1973-01-23
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Expires: 1991-01-25
Abstract
Abstract A REFLECTOR ARRANGEMENT FOR GASEOUS DISCHARGE LAMPS IS DESCRIBED, HAVING REFLECTING SURFACES REPRESENTING RESONATE OPTICAL CAVITIES AT SELECTED WAVELENGTH FOR ATTENUATING EXCESSIVE PEAKS OF SPECTRAL COMPONENTS CHARACTERISTIC OF THE PRIMARY RADIATION SOURCE.
Inventors
- 👤 B Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:23
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/28; G02B5/285; G02B5/288; C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/361; C03C17/3628; C03C17/3639; C03C17/3644; C03C17/3649; C03C17/3657; F; F21; F21V; F21V9/00; F21Y; F21Y2103/00
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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |