US3422759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithographic imaging system using photochromic and thermochromic materials
Assignee: Xerox Corp
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Filing: 1966-06-02
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Granted: 1969-01-21
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Expires: 1986-06-02
Abstract
No abstract record available.
Inventors
- 👤 Carl Brynko
- 👤 Robert W Martel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:45
CPC Classifications
B; B41; B41C; B41C1/00; B41C1/10; B41C1/1041; B41M; B41M1/00; B41M1/06; G; G03; G03F; G03F7/00; G03F7/004; G03F7/0045
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) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |