US3459480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified flickering beam spectrophotometer producing digitized output
Assignee: Wyeth Holdings LLC
•
Filing: 1964-12-31
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Granted: 1969-08-05
•
Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 William Benjamin Prescott
- 👤 Henry C Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:02
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/28; G01J3/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2218357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |