Patent US2494290A successfully refreshed from Google Patents.
US2494290A
Expired / Lapsed
US
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Hypodermic unit and method of making same
Assignee: ER Squibb and Sons LLC
•
Filing: 1944-06-03
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Granted: 1950-01-10
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Expires: 1964-06-03
Abstract
No abstract record available.
Inventors
- 👤 Erhard William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:10
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/28; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49945
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1424243A
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US1734288A
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US1742044A
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US1992605A
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US2238582A
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US2122325A
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US2219301A
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US2273306A
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US2352456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |