US3441672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for phase correction of page printers for facsimile receivers
Assignee: DR ING RUDOLF HELL KG
•
Filing: 1965-09-01
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Granted: 1969-04-29
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Expires: 1985-09-01
Abstract
No abstract record available.
Inventors
- 👤 Christoph Baldrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:18
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/047; H04N1/053; H04N1/12; H04N1/23; H04N1/27; H04N1/32; H04N1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2853551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |