US3345907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dichroism spectroscopes
Assignee: Individual
•
Filing: 1963-06-17
•
Granted: 1967-10-10
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Wada Akiyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:27
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/28; G01J3/42; G01N; G01N21/00; G01N21/17; G01N21/19
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) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |