US3725069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diazo lithographic composition and article
Assignee: Warren SD Co
•
Filing: 1971-09-13
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Granted: 1973-04-03
•
Expires: 1991-09-13
Abstract
Abstract PHOTOSENSITIVE COMPOSITIONS COMPRISING A COPOLYMER OF STYRENE AND ALLYL ALCOHOL AND A LITHOGRAPHIC DIAZO COMPOUND.
Inventors
- 👤 O Hammond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:58
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/016; G03F7/021; G03F7/0212
Claims Analysis
Total Claims: 0
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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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |