US2907674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for developing electrostatic image with liquid developer
Assignee: Australian Government
•
Filing: 1956-12-19
•
Granted: 1959-10-06
•
Expires: 1976-12-19
Abstract
No abstract record available.
Inventors
- 👤 Metcalfe Kenneth Archibald
- 👤 Wright Robert John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:28
CPC Classifications
C; C25; C25D; C25D13/00; G; G03; G03G; G03G9/00; G03G9/08; G03G9/12; G03G9/125; G03G9/13; G03G9/131; G03G9/132; Y; Y10; Y10S; Y10S101/00; Y10S101/37; Y10S430/00; Y10S430/167; Y10S430/168; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR DEVEOLPING AN ELECTROSTATIC IMAGE ON A BASE MATERIAL COMPRISING MIXING A PIGMENT WITH ALKYD RESIN, DISPERSING THE RESULTING MIXTURE IN A LIQUID TO FORM A DISPERSION OF HIGH VOLUME RESISTIVELY, THE ALKYD RESIN ESTABLISHING AN ELECTRICAL SURFACE CHARGE ADAPTED FOR ENABLING THE MIXTURE TO BE DEPOSITED SELECTIVELY ON SAID ELECTROSTATIC IMAGE, AND APPLYING THE DISPERSION TO A SURFACE CARRYING A NEGATIVELY CHARGED ELECTROSTATIC IMAGE FOR THEREBY FORMNG A VISIBLE IMAGE ON SAID SURFACE.
Claim 2
Dependent Claim
76 words
A PROCESS FOR DEVEOLPING AN ELECTROSTATIC IMAGE ON A BASE MATERIAL COMPRISING MIXING A PIGMENT WITH ALKYD RESIN, DISPERSING THE RESULTING MIXTURE IN A LIQUID TO FORM A DISPERSION OF HIGH VOLUME RESISTIVELY, THE ALKYD RESIN ESTABLISHING AN ELECTRICAL SURFACE CHARGE ADAPTED FOR ENABLING THE MIXTURE TO BE DEPOSITED SELECTIVELY ON SAID ELECTROSTATIC IMAGE, AND APPLYING THE DISPERSION TO A SURFACE CARRYING A NEGATIVELY CHARGED ELECTROSTATIC IMAGE FOR THEREBY FORMNG A VISIBLE IMAGE ON SAID SURFACE.
References Cited (Backward Citations)
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US2392376A
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FR1112180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |