Patent US2349881A successfully refreshed from Google Patents.
US2452697A
Expired / Lapsed
US
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Device for sharpening hypodermic needles
Assignee: Individual
•
Filing: 1947-05-20
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Granted: 1948-11-02
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Expires: 1967-05-20
Abstract
No abstract record available.
Inventors
- 👤 Stabler Robinson Ryland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:32
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1095338A
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US1981174A
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US2088056A
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US2142923A
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US2165929A
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US2324025A
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US2286141A
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US2287910A
Cited
US2402245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |