US2939459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tandem syringe
Assignee: Individual
•
Filing: 1957-01-11
•
Granted: 1960-06-07
•
Expires: 1977-01-11
Abstract
No abstract record available.
Inventors
- 👤 Jorge A Lazarte
- 👤 Conrad W Baars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:52
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31596; A61M2005/1787; A61M5/28; A61M5/285; A61M5/288; A61M5/31598
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1179561A
Cited
US1234582A
Cited
US2102704A
Cited
US2554451A
Cited
US2505308A
Cited
US2655919A
Cited
US2725057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |