US2933087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringe
Assignee: Individual
•
Filing: 1957-10-04
•
Granted: 1960-04-19
•
Expires: 1977-10-04
Abstract
No abstract record available.
Inventors
- 👤 Clark H Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:49
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31525; A61M5/31531
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US827693A
Cited
FR577367A
Cited
US2015970A
Cited
US2515956A
Cited
US2638897A
Cited
US2717600A
Cited
US2794435A
Cited
US2746454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |