US3236776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Developer composition for electrostatic images and method of utilizing same
Assignee: Azoplate Corp
•
Filing: 1960-07-19
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Granted: 1966-02-22
•
Expires: 1980-07-19
Abstract
No abstract record available.
Inventors
- 👤 Tomanek Martha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:41
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G13/00; G03G13/06; G03G13/08; G03G9/10; G03G9/103
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A DEVELOPER FOR USE IN ELECTROPHOTORAPHIC PROCESSES COMPRISING A CARRIER AND A TONER, ONE PORTION OF THE TONER HAVING, WITH RESPECT TO THE CARRIER, A POSITIVE CHARGE AND ONE PORTION HAVING A NEGATIVE CHARGE, THE LATTER PORTION BEING SELECTED FROM THE GROUP CONSISTING OF METAL RESINATES AND VINYL CHLORIDE INTERPOLYMERS CONTAINING CARBOXYL GROUPS.
Claim 2
Dependent Claim
53 words
A DEVELOPER FOR USE IN ELECTROPHOTORAPHIC PROCESSES COMPRISING A CARRIER AND A TONER, ONE PORTION OF THE TONER HAVING, WITH RESPECT TO THE CARRIER, A POSITIVE CHARGE AND ONE PORTION HAVING A NEGATIVE CHARGE, THE LATTER PORTION BEING SELECTED FROM THE GROUP CONSISTING OF METAL RESINATES AND VINYL CHLORIDE INTERPOLYMERS CONTAINING CARBOXYL GROUPS.
References Cited (Backward Citations)
US2618551A
Cited
US2735785A
Cited
US2817767A
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US2919247A
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US2917460A
Cited
US3010842A
Cited
US2907674A
Cited
US2986521A
Cited
US3013890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |