US3472227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic needle
Assignee: Burron Medical Products Inc
•
Filing: 1965-08-18
•
Granted: 1969-10-14
•
Expires: 1985-08-18
Abstract
No abstract record available.
Inventors
- 👤 George K Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:53
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0009; A61M25/0014; A61M5/00; A61M5/178; A61M5/31; A61M5/32; A61M5/34; A61M5/343; A61M5/349
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3021942A
Cited
GB884096A
Cited
US3096763A
Cited
US3115875A
Cited
US3186408A
Cited
US3247850A
Cited
US3372697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |