US3276868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planographic printing plates
Assignee: Azoplate Corp
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Filing: 1965-11-23
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Granted: 1966-10-04
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Expires: 1985-11-23
Abstract
No abstract record available.
Inventors
- 👤 Uhlig Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:35
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/14; G03G5/142; B; B41; B41N; B41N3/00; B41N3/03; B41N3/038; G03G13/00; G03G13/26; G03G13/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN ELECTROPHTOGRAPHIC MATERIAL COMPRISING AN ALUMINUM BASE, A FIRST LAYER ON THE BASE COMPRISING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ORGANIC PHOSPHONIC ACID AND THE ESTERS AND SALTS THEREOF, AND A SECOND LAYER ON THE FIRST LAYER, THE SECOND LAYER BEING A PHOTOCONDUCTIVE LAYER.
Claim 2
Dependent Claim
49 words
AN ELECTROPHTOGRAPHIC MATERIAL COMPRISING AN ALUMINUM BASE, A FIRST LAYER ON THE BASE COMPRISING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ORGANIC PHOSPHONIC ACID AND THE ESTERS AND SALTS THEREOF, AND A SECOND LAYER ON THE FIRST LAYER, THE SECOND LAYER BEING A PHOTOCONDUCTIVE LAYER.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |