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Patent US2764977A successfully refreshed from Google Patents.
US2764977A
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US
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Hypodermic injection mechanism
Assignee: Becton Dickinson and Co
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Filing: 1951-05-24
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Granted: 1956-10-02
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Expires: 1971-05-24
Abstract
No abstract record available.
Inventors
- 👤 Garwood W Ferguson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:10
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1139368A
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US2445477A
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US2626087A
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US2547099A
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US2550053A
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US2653602A
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US2653605A
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US2635601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |