Patent US2755715A successfully refreshed from Google Patents.
US2755715A
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US
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Rapid processing of positive photographic images
Assignee: Kenyon Instrument Co Inc
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Filing: 1953-01-07
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Granted: 1956-07-24
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Expires: 1973-01-07
Abstract
No abstract record available.
Inventors
- 👤 Clifton M Tuttle
- 👤 Neil R Tuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:59
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/46; G03B27/475; G03D; G03D5/00; G03D5/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1682931A
Cited
US2586772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |