US2995443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum plate with plural images and method of making same
Assignee: Metalphoto Corp
•
Filing: 1957-08-08
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Granted: 1961-08-08
•
Expires: 1977-08-08
Abstract
No abstract record available.
Inventors
- 👤 Robert A Kempe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:57
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/77; Y; Y10; Y10S; Y10S430/00; Y10S430/136; Y10S430/153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF MANUFACTURING AN ALUMINUM PHOTOGRAPHIC PLATE WHICH COMPRISES: CLEANING THE SURFACE OF AN ALUMINUM SHEET MATERIAL TO PROVIDE AN UNBLEMISHED BASE, FREE FROM SOIL, FORMING A RELIEF IMAGE ON SAID ALUMINUM SURFACE BY REMOVAL OF A PORTION OF SAID SURFACE, ANODIZING THE RESULTING ARTICLE TO PROVIDE THE IMAGE BEARING SURFACE WITH A THIN, TRANSPARENT, POROUS OXIDE COATING AND IMPREGNATING THE PORES OF SAID COATING WITH A PHOTOSENSITIVE MATERIAL.
Claim 2
Independent Claim
70 words
A METHOD OF MANUFACTURING AN ALUMINUM PHOTOGRAPHIC PLATE WHICH COMPRISES: CLEANING THE SURFACE OF AN ALUMINUM SHEET MATERIAL TO PROVIDE AN UNBLEMISHED BASE, FREE FROM SOIL, FORMING A RELIEF IMAGE ON SAID ALUMINUM SURFACE BY REMOVAL OF A PORTION OF SAID SURFACE, ANODIZING THE RESULTING ARTICLE TO PROVIDE THE IMAGE BEARING SURFACE WITH A THIN, TRANSPARENT, POROUS OXIDE COATING AND IMPREGNATING THE PORES OF SAID COATING WITH A PHOTOSENSITIVE MATERIAL.
References Cited (Backward Citations)
US2766119A
Cited
US2854336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |