US2659670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of developing electrostatic images
Assignee: Xerox Corp
•
Filing: 1950-06-06
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Granted: 1953-11-17
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Expires: 1970-06-06
Abstract
No abstract record available.
Inventors
- 👤 Harold E Copley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:34
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/087; G03G9/08742; G03G9/08746; G03G9/08748; G03G9/08775; G03G9/09; G03G9/0902; G03G9/0904; G03G9/0906; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD OF PRODUCING AN ELECTROPHOTOGRAPHIC PRINT FROM AN ELECTROSTATIC IMAGE COMPRISING DEPOSITING A FINELY DIVIDED DEVELOPER MATERIAL ON A SURFACE BEARING AN ELECTROSTATIC LATENT IMAGE IN CONFIGURATION CONFORMING WITH SUCH IMAGE, TRANSFERRING DEPOSITED MATERIAL IN SAID CONFIGURATION TO A PAPER WEB AND FUSING THE MATERIAL TO SAID WEB AT A TEMPERATURE BELOW THE CHAR POINT OF PAPER, THE DEVELOPER MATERIAL CONSISTING OF A FINELY DIVIDED THERMOPLASTIC COMPOSITION FUSIBLE BELOW THE CHAR POINT OF PAPER AND COMPRISING A COLORED PIGMENT VISIBLE AGAINST THE BACKGROUND OF PAPER AND UNIFORMLY DISTRIBUTED THROUGHOUT A BINDER COMPOSED OF A THERMOPLASTIC SUBSTANTIALLY NON-TACKY ROSIN-MODIFIED PHENOL-FORMALDEHYDE RESIN.
Claim 2
Independent Claim
101 words
A METHOD OF PRODUCING AN ELECTROPHOTOGRAPHIC PRINT FROM AN ELECTROSTATIC IMAGE COMPRISING DEPOSITING A FINELY DIVIDED DEVELOPER MATERIAL ON A SURFACE BEARING AN ELECTROSTATIC LATENT IMAGE IN CONFIGURATION CONFORMING WITH SUCH IMAGE, TRANSFERRING DEPOSITED MATERIAL IN SAID CONFIGURATION TO A PAPER WEB AND FUSING THE MATERIAL TO SAID WEB AT A TEMPERATURE BELOW THE CHAR POINT OF PAPER, THE DEVELOPER MATERIAL CONSISTING OF A FINELY DIVIDED THERMOPLASTIC COMPOSITION FUSIBLE BELOW THE CHAR POINT OF PAPER AND COMPRISING A COLORED PIGMENT VISIBLE AGAINST THE BACKGROUND OF PAPER AND UNIFORMLY DISTRIBUTED THROUGHOUT A BINDER COMPOSED OF A THERMOPLASTIC SUBSTANTIALLY NON-TACKY ROSIN-MODIFIED PHENOL-FORMALDEHYDE RESIN.
References Cited (Backward Citations)
US1133083A
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GB259030A
Cited
US1902461A
Cited
US2297691A
Cited
US2362627A
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US2378366A
Cited
GB558654A
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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) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |