Patent JPS5654583A successfully refreshed from Google Patents.
Patent US2548936A successfully refreshed from Google Patents.
US2548936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocopying machine
Assignee: Ozalid Co Ltd
•
Filing: 1947-10-30
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Granted: 1951-04-17
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Expires: 1967-10-30
Abstract
No abstract record available.
Inventors
- 👤 Blick Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:06
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/18; G03B27/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US910832A
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US976164A
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US1628436A
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US1804796A
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US2041478A
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US2220526A
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US2308130A
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US2297573A
Cited
US2320334A
Cited
US2421150A
Cited
US2431520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |