Patent US5044727A successfully refreshed from Google Patents.
Patent US3083117A successfully refreshed from Google Patents.
US3083117A
Expired / Lapsed
US
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Process of developing electrostatic images
Assignee: Individual
•
Filing: 1958-06-10
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Granted: 1963-03-26
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Expires: 1978-06-10
Abstract
No abstract record available.
Inventors
- 👤 Schmiedel Ulrich
- 👤 Fischer Henning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:30
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/09; G03G9/0928; G03G7/00; Y; Y10; Y10S; Y10S101/00; Y10S101/29; Y10S101/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2028619A
Cited
US2487034A
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US2761416A
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US2730456A
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US2735785A
Cited
US2735784A
Cited
US2910351A
Cited
US2953470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |