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US2865246A
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Spectrophotometer
Assignee: General Electric Co
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Filing: 1953-10-14
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Granted: 1958-12-23
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Expires: 1973-10-14
Abstract
No abstract record available.
Inventors
- 👤 Benjamin S Pritchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:28
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/28; G01J3/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB438511A
Cited
US2157389A
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US2227510A
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US2328293A
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US2450761A
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US2654287A
Cited
US2660086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |