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US2764978A
Expired / Lapsed
US
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Locking device for hypodermic needles
Assignee: S&RJ Everett and Co Ltd
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Filing: 1953-11-13
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Granted: 1956-10-02
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Expires: 1973-11-13
Abstract
No abstract record available.
Inventors
- 👤 Everett Samuel James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:53
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/34; A61M5/347; A61M5/348
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE536212C
Cited
US1712070A
Cited
US1757680A
Cited
US1793068A
Cited
US2088338A
Cited
US2617359A
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 |