US3143056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for diffusion developing
Assignee: Lumoprint Zindler KG and Co GmbH
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Filing: 1961-01-26
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Granted: 1964-08-04
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Expires: 1981-01-26
Abstract
No abstract record available.
Inventors
- 👤 Limberger Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:35
CPC Classifications
G; G03; G03D; G03D9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A DEVICE FOR DIFFUSION DEVELOPING IN WHICH TWO LAYER CARRIERS ARE USED, COMPRISING A HOUSING, INLET MEANS IN ONE WALL OF SAID HOUSING, OUTLET MEANS IN ANOTHER WALL OF SAID HOUSING, UPPER GUIDE MEANS DEFINING THE UPPER SIDE OF A GUIDE PATH BETWEEN SAID INLET AND SAID OUTLET MEANS, LOWER GUIDE MEANS DEFINING THE LOWER SIDE OF SAID GUIDE PATH, A CHAMBER WITHIN SAID GUIDE PATH INTERMEDIATE SAID GUIDE MEANS, SAID CHAMBER HAVING OPENINGS DEFINED THEREIN OF SUCH SIZE NORMALLY PREVENTING A FREE FLOW OF LIQUID OUT OF SAID OPENINGS BUT ALLOWING SUCH FLOW IF A PRESSURE IS EXERTED UPON THE LIQUID WITHIN SAID CHAMBER, A PAIR OF SQUEEZING AND TRANSPORTING ROLLERS ROTATABLY SUPPORTED WITHIN SAID HOUSING AND DISPOSED WITHIN SAID GUIDE PATH BETWEEN SAID CHAMBER AND SAID OUTLET MEANS, DRIVE MEANS
Claim 2
Independent Claim
132 words
A DEVICE FOR DIFFUSION DEVELOPING IN WHICH TWO LAYER CARRIERS ARE USED, COMPRISING A HOUSING, INLET MEANS IN ONE WALL OF SAID HOUSING, OUTLET MEANS IN ANOTHER WALL OF SAID HOUSING, UPPER GUIDE MEANS DEFINING THE UPPER SIDE OF A GUIDE PATH BETWEEN SAID INLET AND SAID OUTLET MEANS, LOWER GUIDE MEANS DEFINING THE LOWER SIDE OF SAID GUIDE PATH, A CHAMBER WITHIN SAID GUIDE PATH INTERMEDIATE SAID GUIDE MEANS, SAID CHAMBER HAVING OPENINGS DEFINED THEREIN OF SUCH SIZE NORMALLY PREVENTING A FREE FLOW OF LIQUID OUT OF SAID OPENINGS BUT ALLOWING SUCH FLOW IF A PRESSURE IS EXERTED UPON THE LIQUID WITHIN SAID CHAMBER, A PAIR OF SQUEEZING AND TRANSPORTING ROLLERS ROTATABLY SUPPORTED WITHIN SAID HOUSING AND DISPOSED WITHIN SAID GUIDE PATH BETWEEN SAID CHAMBER AND SAID OUTLET MEANS, DRIVE MEANS
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |