Patent US2484378A successfully refreshed from Google Patents.
US2484378A
Expired / Lapsed
US
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Developing tank for developing photographic films
Assignee: Individual
•
Filing: 1945-01-19
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Granted: 1949-10-11
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Expires: 1965-01-19
Abstract
No abstract record available.
Inventors
- 👤 Freeman Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:18
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/04; G03D13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1352109A
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US1542530A
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US2082962A
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US2112605A
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DE641858C
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GB491231A
Cited
CH209869A
Cited
DE696298C
Cited
US2214581A
Cited
US2367424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |