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US3440047A
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Photopolymer offset printing plates of the etch type
Assignee: GAF Chemicals Corp
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Filing: 1964-08-10
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Granted: 1969-04-22
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Expires: 1984-08-10
Abstract
No abstract record available.
Inventors
- 👤 Steven Levinos
- 👤 John A Bergfjord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:36
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/09; G03F7/11; B; B41; B41N; B41N3/00; B41N3/08; G03F7/027; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/116
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |