US3754736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film dryer
Assignee: Solartron Electronics Inc
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Filing: 1971-12-06
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Granted: 1973-08-28
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Expires: 1991-12-06
Abstract
Abstract A dryer assembly particularly designed for use by photographers who do their own developing, comprising a closed system isolated from the ambient environment, containing a desiccant space and an article-containing space suitable to receive film strips, and means to circulate the air in closed cycles through the article space, and desiccant contained in said desiccant space.
Inventors
- 👤 L Statham
- 👤 W Eisele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:32
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/02; G03D15/00; G03D15/02; G03D15/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A washing device comprising an inner and outer cup, the outer cup carrying longitudinal ribs on the inner surface of said outer cup, the inner cup fitting into the outer cup and spaced from said outer cup by said ribs to provide segmented annular space with water passageways between the outer and inner cup and said ribs, the bottom of the inner cup being slotted to provide water passage therethrough, the wall of said inner cup at its upper end carrying a depending crenelated flange, adapted to seat on the upper end of the outer cup, whereby water passage is provided through the bottom of said inner cup and upward between said cups, to discharge through the notches provided by the crenelations of the top of said outer cup.
Claim 2
Dependent Claim
129 words
A washing device comprising an inner and outer cup, the outer cup carrying longitudinal ribs on the inner surface of said outer cup, the inner cup fitting into the outer cup and spaced from said outer cup by said ribs to provide segmented annular space with water passageways between the outer and inner cup and said ribs, the bottom of the inner cup being slotted to provide water passage therethrough, the wall of said inner cup at its upper end carrying a depending crenelated flange, adapted to seat on the upper end of the outer cup, whereby water passage is provided through the bottom of said inner cup and upward between said cups, to discharge through the notches provided by the crenelations of the top of said outer cup.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |