US3233586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for the application of developer powder
Assignee: Lumoprint Zindler KG and Co GmbH
•
Filing: 1962-07-20
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Granted: 1966-02-08
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Expires: 1982-07-20
Abstract
No abstract record available.
Inventors
- 👤 Cranskens Georg
- 👤 Thurat Uwe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:45
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A DEVICE FOR DISTRIBUTING DEVELOPER POWDER OVER A SURFACE OF A SHEET OF EXPOSED ELECTROPHOTOGRAPHIC MATERIAL, COMPRISING A CONTAINER PROVIDED WITH SUBSTANTIALLY HORIZONTAL GUIDE MEANS FOR THE PASSAGE OF SAID SHEET THERETHROUGH; A CYLINDRICAL ROLLER IN SAID CONTAINER DISPOSED FOR ROTATION ABOUT A HORIZONTAL AXIS BELOW SAID GUIDE MEANS, SAID CONTAINER FORMING A RECEPTACLE FOR A PILE OF DEVELOPER POWDER RISING ABOVE THE LOWER ROLLER SURFACE, SAID ROLLER BEING MAGNETIZED ALONG ITS SURFACE WITH ALTERNATING NORTH AND SOUTH POLES FOR ENTRAINING A
Claim 2
Independent Claim
82 words
A DEVICE FOR DISTRIBUTING DEVELOPER POWDER OVER A SURFACE OF A SHEET OF EXPOSED ELECTROPHOTOGRAPHIC MATERIAL, COMPRISING A CONTAINER PROVIDED WITH SUBSTANTIALLY HORIZONTAL GUIDE MEANS FOR THE PASSAGE OF SAID SHEET THERETHROUGH; A CYLINDRICAL ROLLER IN SAID CONTAINER DISPOSED FOR ROTATION ABOUT A HORIZONTAL AXIS BELOW SAID GUIDE MEANS, SAID CONTAINER FORMING A RECEPTACLE FOR A PILE OF DEVELOPER POWDER RISING ABOVE THE LOWER ROLLER SURFACE, SAID ROLLER BEING MAGNETIZED ALONG ITS SURFACE WITH ALTERNATING NORTH AND SOUTH POLES FOR ENTRAINING A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |