US2864279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectrophotometer cell holder
Assignee: Akzo Nobel UK PLC
•
Filing: 1955-11-07
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Granted: 1958-12-16
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Expires: 1975-11-07
Abstract
No abstract record available.
Inventors
- 👤 Lyle H Phifer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:51
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/01; G01N21/03; G01N2021/0346
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US945619A
Cited
US1967583A
Cited
FR827720A
Cited
US2330026A
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US2442462A
Cited
US2617940A
Cited
US2700320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |