Patent US3424428A successfully refreshed from Google Patents.
US3424428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray spectroscope assembly having an analyzer block composed of annealed pyrolytic graphite on an optically accurate surface
Assignee: ATK Launch Systems LLC
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Filing: 1965-08-09
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Granted: 1969-01-28
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Max D Canon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:40
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/20; G01N23/20008; G01N23/207; G01N23/2076; G01N23/22; G01N23/223; G01N2223/00; G01N2223/05; G01N2223/056; G01N2223/0568; G01N2223/10; G01N2223/101; G01N2223/1016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB991681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |