US2583743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic syringe
Assignee: MARGARET L LOCKHART
•
Filing: 1944-10-02
•
Granted: 1952-01-29
•
Expires: 1964-10-02
Abstract
No abstract record available.
Inventors
- 👤 Marshall L Lockhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:40
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/24; A61M5/2422; A61M5/2429
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1848711A
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US937029A
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US1008078A
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US1644657A
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US2016631A
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US2115731A
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US2159217A
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US2313483A
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US2448898A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |