US3347616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photometric comb minimizing photometric errors arising from non-uniformity of illumination
Assignee: Toshiba Corp
•
Filing: 1963-05-23
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Granted: 1967-10-17
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Expires: 1983-05-23
Abstract
No abstract record available.
Inventors
- 👤 Tokyo Leo Mori
- 👤 Osawa Hideo
- 👤 Fujita Ichiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:15
CPC Classifications
G; G02; G02B; G02B5/00; G01; G01J; G01J1/00; G01J1/10; G01J1/20; G01J1/22; G01J1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3013470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |