US3091219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xerographic developing apparatus
Assignee: Xerox Corp
•
Filing: 1958-12-24
•
Granted: 1963-05-28
•
Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Crumrine
- 👤 Charles L Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:36
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0803; G03B; G03B17/00; G03B17/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
AN APPARATUS FOR DEVELOPING ELECTROSTATIC LATENT IMAGES ON XEROGRAPHIC PLATES INCLUDING A BASE PLATE ASSEMBLY HAVING INLET AND OUTLET CONNECTIONS FOR XEROGRAPHIC DEVELOPING MATERIAL, A DEVELOPMENT ELECTRODE ASSEMBLY INCLUDING A DEVELOPMENT ELECTRODE AND HAVING INLET AND OUTLET CONNECTIONS FOR DEVELOPING MATERIAL THAT ARE ALIGNED WITH THE CORRESPONDING CONNECTIONS OF THE BASE PLATE ASSEMBLY, MEANS ON SAID DEVELOPMENT ELECTRODE ASSEMBLY FOR SECURING A XEROGRAPHIC PLATE THEREON IN OPERATIVE RELATION TO THE DEVELOPMENT ELECTRODE, MEANS FOR MOVING THE DEVELOPMENT ELECTRODE ASSEMBLY INTO AND OUT OF OPERATIVE RELATION WITH THE BASE PLATE ASSEMBLY, MEANS OPERABLE WHEN THE DEVELOPMENT ELECTRODE ASSEMBLY IS OUT OF OPERATIVE RELATION WITH THE BASE PLATE ASSEMBLY FOR POSITIONING A XEROGRAPHIC PLATE ON THE DEVELOPMENT ELECTRODE ASSEMBLY, AND MEANS OPERABLE WHEN THE DEVELOPMENT ELECTRODE ASSEMBLY IS IN OPERATIVE RELATION WITH THE BASE PLATE ASSEMBLY FOR MAINTAINING SAID OPERATIVE RELATION FOR A PREDETERMINED TIME PERIOD.
Claim 2
Independent Claim
144 words
AN APPARATUS FOR DEVELOPING ELECTROSTATIC LATENT IMAGES ON XEROGRAPHIC PLATES INCLUDING A BASE PLATE ASSEMBLY HAVING INLET AND OUTLET CONNECTIONS FOR XEROGRAPHIC DEVELOPING MATERIAL, A DEVELOPMENT ELECTRODE ASSEMBLY INCLUDING A DEVELOPMENT ELECTRODE AND HAVING INLET AND OUTLET CONNECTIONS FOR DEVELOPING MATERIAL THAT ARE ALIGNED WITH THE CORRESPONDING CONNECTIONS OF THE BASE PLATE ASSEMBLY, MEANS ON SAID DEVELOPMENT ELECTRODE ASSEMBLY FOR SECURING A XEROGRAPHIC PLATE THEREON IN OPERATIVE RELATION TO THE DEVELOPMENT ELECTRODE, MEANS FOR MOVING THE DEVELOPMENT ELECTRODE ASSEMBLY INTO AND OUT OF OPERATIVE RELATION WITH THE BASE PLATE ASSEMBLY, MEANS OPERABLE WHEN THE DEVELOPMENT ELECTRODE ASSEMBLY IS OUT OF OPERATIVE RELATION WITH THE BASE PLATE ASSEMBLY FOR POSITIONING A XEROGRAPHIC PLATE ON THE DEVELOPMENT ELECTRODE ASSEMBLY, AND MEANS OPERABLE WHEN THE DEVELOPMENT ELECTRODE ASSEMBLY IS IN OPERATIVE RELATION WITH THE BASE PLATE ASSEMBLY FOR MAINTAINING SAID OPERATIVE RELATION FOR A PREDETERMINED TIME PERIOD.
References Cited (Backward Citations)
US2877132A
Cited
US2831409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |