Patent US2558567A successfully refreshed from Google Patents.
US2558567A
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US
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Assignee: Individual
•
Filing: 1949-03-10
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Granted: 1951-06-26
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Expires: 1969-03-10
Abstract
No abstract record available.
Inventors
- 👤 Kaeser Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:55
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/32; B26F1/36; B26D; B26D7/00; B26D2007/0012; B26D2007/0018; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2135; Y10T83/215; Y10T83/2155; Y10T83/2157; Y10T83/222; Y10T83/869; Y10T83/8776; Y10T83/8785; Y10T83/8786
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US310917A
Cited
US466847A
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US1282934A
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US1827180A
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US2017195A
Cited
US1948187A
Cited
US2202894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |