US3576744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic developing composition containing two different negative directing resins
Assignee: Clopay Corp
•
Filing: 1967-09-21
•
Granted: 1971-04-27
•
Expires: 1987-09-21
Abstract
Abstract A LIQUID DEVELOPER COMPOSITION FOR DEVELOPING LATENT ELETROSTATIC IMAGES TO VISIBLE IMAGES. THE COMPOSITION CONTAINS TWO DIFFERENT NEGATIVE DIRECTING RESINS, PIGMENT, A NEGATIVE CHARGE CONTROL AGENT AND A CARRIER LIQUID.
Inventors
- 👤 Robert F Sharrock
- 👤 Joseph W Castillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:47
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/12; G03G9/135; G03G9/1355; G03G9/13; G03G9/131; Y; Y10; Y10S; Y10S430/00; Y10S430/001; Y10S430/105
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-26 | 1974-10-26 | 1975-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-26 | 1978-10-26 | 1979-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-26 | 1982-10-26 | 1983-04-27 | $7700.00 | Window Closed / Lapsed |