Patent US2653527A successfully refreshed from Google Patents.
US2653527A
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Process for treating photosensitive materials by spreading thereon a layer of processing liquid and apparatus for performing said process
Assignee: Polaroid Corp
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Filing: 1947-02-19
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Granted: 1953-09-29
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Expires: 1967-02-19
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Land
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:54
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52; Y; Y10; Y10S; Y10S430/00; Y10S430/164
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1285015A
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US1841653A
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US1956230A
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US2196226A
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FR879995A
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US2352014A
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FR896127A
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FR900266A
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US2455735A
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US2435717A
Cited
US2435718A
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US2435719A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |