US2989053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic needle
Assignee: Don Baxter Inc
•
Filing: 1956-01-17
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Granted: 1961-06-20
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Expires: 1976-01-17
Abstract
No abstract record available.
Inventors
- 👤 Donald A Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:15
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/162; A61M2205/00; A61M2205/19; A61M2205/192; A61M2205/195
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US648858A
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US1100799A
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US2638897A
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US2744528A
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US2716982A
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US2794435A
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FR1064223A
Cited
US2697438A
Cited
US2764978A
Cited
FR1098628A
Cited
US2746455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |