Patent US2561241A successfully refreshed from Google Patents.
US2561241A
Expired / Lapsed
US
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Electric dry shaver
Assignee: Unisys Corp
•
Filing: 1948-04-28
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Granted: 1951-07-17
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Expires: 1968-04-28
Abstract
No abstract record available.
Inventors
- 👤 Streng Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:23
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/38; B26B19/3853
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US707940A
Cited
US2220597A
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US2180738A
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US2132898A
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US2290326A
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US2286061A
Cited
US2286093A
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US2315261A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |