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US2825332A
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US
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Hypodermic syringe with magnetically actuated piston and needle
Assignee: HOWARD JOHNSON ELECTROSTATICS
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Filing: 1954-08-20
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Granted: 1958-03-04
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Expires: 1974-08-20
Abstract
No abstract record available.
Inventors
- 👤 Howard R Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:40
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/20; A61M5/204; A61M5/14; A61M5/142; A61M5/145; A61M5/1452
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |