Patent US3242902A successfully refreshed from Google Patents.
US3242902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toner feed
Assignee: RCA Corp
•
Filing: 1963-02-20
•
Granted: 1966-03-29
•
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 18:57
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.
References Cited (Backward Citations)
US3124484A
Cited
US1451180A
Cited
US2083193A
Cited
US2554393A
Cited
US2649758A
Cited
US2604386A
Cited
US2750027A
Cited
US2904000A
Cited
US3052213A
Cited
US3096198A
Cited
US2991754A
Cited
US3129115A
Cited
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 |