US3445226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frost gravure print master
Assignee: Xerox Corp
•
Filing: 1965-05-24
•
Granted: 1969-05-20
•
Expires: 1985-05-24
Abstract
No abstract record available.
Inventors
- 👤 Robert W Gundlach
- 👤 Lloyd F Bean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:31
CPC Classifications
G; G03; G03G; G03G9/00; B; B41; B41C; B41C1/00; B41C1/10; G03G13/00; G03G13/26; G03G13/28; G03G13/286; G03G5/00; G03G5/02; G03G5/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2637651A
Cited
US2917460A
Cited
US3093039A
Cited
US3196011A
Cited
US3271146A
Cited
US3307941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-19 | 1972-11-18 | 1973-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-19 | 1976-11-18 | 1977-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-19 | 1980-11-18 | 1981-05-20 | $7700.00 | Window Closed / Lapsed |