Patent US3242902A successfully refreshed from Google Patents.
US3242902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toner feed
Assignee: RCA Corp
•
Filing: 1963-02-20
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Granted: 1966-03-29
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Expires: 1983-02-20
Abstract
No abstract record available.
Inventors
- 👤 Russell R Ulary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:10
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/10; G03G15/104
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
LIQUID DEVELOPING APPARATUS COMPRISING: A RESERVOIR FOR CONTAINING A LIQUID DEVELOPER COMPOSITION; APPLICATOR MEANSA FOR APPLYING SAID COMPOSITION TO A SURFACE BEARING AN ELECTROSTATIC IMAGE; CONDUIT MEANS DEFINING A FLOW PATH FOR SAID COMPOSITION FROM SAID RESERVOIR TO SAID APPLICATOR MEANS AND BACK TO SAID RESEVOIR; MEANS INCLUDING A MASS OF TONER PARTICLES DISPERSED IN A SOLUBLE HOST MATERIAL IN SAID FLOW PATH TO CAUSE TONER PARTICLES TO BLEED INTO SAID COMPOSITION WHEN IT FLOWS THROUGH SAID PATH.
Claim 2
Dependent Claim
78 words
LIQUID DEVELOPING APPARATUS COMPRISING: A RESERVOIR FOR CONTAINING A LIQUID DEVELOPER COMPOSITION; APPLICATOR MEANSA FOR APPLYING SAID COMPOSITION TO A SURFACE BEARING AN ELECTROSTATIC IMAGE; CONDUIT MEANS DEFINING A FLOW PATH FOR SAID COMPOSITION FROM SAID RESERVOIR TO SAID APPLICATOR MEANS AND BACK TO SAID RESEVOIR; MEANS INCLUDING A MASS OF TONER PARTICLES DISPERSED IN A SOLUBLE HOST MATERIAL IN SAID FLOW PATH TO CAUSE TONER PARTICLES TO BLEED INTO SAID COMPOSITION WHEN IT FLOWS THROUGH SAID PATH.
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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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |