US3455632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of classifying photographic material
Assignee: Ilford Imaging UK Ltd
•
Filing: 1966-01-06
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Granted: 1969-07-15
•
Expires: 1986-01-06
Abstract
No abstract record available.
Inventors
- 👤 Denis Manktelow Neale
- 👤 Leslie John George Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/08; G01; G01J; G01J1/00; G01J1/42; G03B; G03B27/00; G03B27/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2986466A
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US2927857A
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US2976348A
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US3164056A
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US3244062A
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US3339076A
Cited
US3246334A
Cited
US3375751A
Cited
US3261258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |