US3011391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed plane grating spectrograph and monochromator
Assignee: JARRELL ASH CO
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Filing: 1959-07-29
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Granted: 1961-12-05
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Expires: 1979-07-29
Abstract
No abstract record available.
Inventors
- 👤 William G Fastic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:37
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/02; G01J3/04; G01J3/12; G01J3/18; G01J3/1804
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |