Patent US5681347A successfully refreshed from Google Patents.
US2449968A
Expired / Lapsed
US
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Hypodermic syringe
Assignee: Individual
•
Filing: 1946-12-31
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Granted: 1948-09-21
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Expires: 1966-12-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:45
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/24; A61M5/2448
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1259964A
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US1607561A
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US1718593A
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US2323159A
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US2345301A
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US2232978A
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US2338102A
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US2337354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |