Patent US5662607A successfully refreshed from Google Patents.
US3479183A
Expired / Lapsed
US
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Negative-working diazosulfonate reproduction process
Assignee: Tecnifax Corp
•
Filing: 1965-06-16
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Granted: 1969-11-18
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Expires: 1985-06-16
Abstract
No abstract record available.
Inventors
- 👤 David P Habib
- 👤 Robert S Allard
- 👤 Eugene J Zabik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:52
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/56
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |