Patent US2803177A successfully refreshed from Google Patents.
US2803177A
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Apparatus and method for xerographic printing
Assignee: International Business Machines Corp
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Filing: 1953-12-31
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Granted: 1957-08-20
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Expires: 1973-12-31
Abstract
No abstract record available.
Inventors
- 👤 Richard W Lowrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:28
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/26; G03G15/24; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2633796A
Cited
GB605979A
Cited
US2682478A
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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) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |