Patent US2878972A successfully refreshed from Google Patents.
US2878972A
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Rough surface powder cloud generation
Assignee: Xerox Corp
•
Filing: 1955-02-18
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Granted: 1959-03-24
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Expires: 1975-02-18
Abstract
No abstract record available.
Inventors
- 👤 Matthews Earnest Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:52
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0803; Y; Y10; Y10S; Y10S222/00; Y10S222/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2614655A
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US2664226A
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US2701764A
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US2684902A
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US2718987A
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US2756676A
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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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |