Patent US2646043A successfully refreshed from Google Patents.
US2646043A
Expired / Lapsed
US
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Piston syringe for medical use
Assignee: Individual
•
Filing: 1950-12-11
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Granted: 1953-07-21
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Expires: 1970-12-11
Abstract
No abstract record available.
Inventors
- 👤 Hertig-Husler Sonja
- 👤 Hertig Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:10
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31501
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US650203A
Cited
US729011A
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US1453418A
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US1471644A
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US1456717A
Cited
DE411698C
Cited
GB255018A
Cited
US2375929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |