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US3390993A
Expired / Lapsed
US
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Condensation product of a diazo-diphenylamine with an aldehyde in the presence of hbr for screen process printing
Assignee: Azoplate Corp
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Filing: 1965-11-22
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Granted: 1968-07-02
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Expires: 1985-11-22
Abstract
No abstract record available.
Inventors
- 👤 Henning H Borchers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:48
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/04; C08G12/06; C08G12/08; G; G03; G03F; G03F7/00; G03F7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3246986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |