Patent US2578812A successfully refreshed from Google Patents.
US2578812A
Expired / Lapsed
US
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Injection syringe
Assignee: Individual
•
Filing: 1947-12-20
•
Granted: 1951-12-18
•
Expires: 1967-12-20
Abstract
No abstract record available.
Inventors
- 👤 Kollsman Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:58
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31565; A61M5/3159; A61M5/31591; A61M5/28; A61M5/31533; A61M5/31545; A61M5/31548; A61M5/3155; A61M5/31551; A61M5/31555; A61M5/3156; A61M5/31561; A61M5/31563; A61M5/31576; A61M5/31578; A61M5/3158
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1848711A
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US1499952A
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US1817003A
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US1555282A
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US2394687A
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US2388323A
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US2408323A
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US2410351A
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US2409656A
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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) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |