US2726656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic syringe structure
Assignee: Compule Corp
•
Filing: 1952-10-21
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Granted: 1955-12-13
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Expires: 1972-10-21
Abstract
No abstract record available.
Inventors
- 👤 Marshall L Lockhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:02
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/20; A61J1/2096; A61J1/2089; A61J1/2003; A61J1/2006; A61J1/201; A61J1/2013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2538391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |