US3494359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two compartment syringe with a single barrel
Assignee: Silver Industries Inc
•
Filing: 1969-03-17
•
Granted: 1970-02-10
•
Expires: 1989-03-17
Abstract
No abstract record available.
Inventors
- 👤 Eli A Zackheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:32
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/28; A61M5/284; A61M5/285; A61M5/286; A61M2005/287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1929616A
Cited
US2390246A
Cited
US2549417A
Cited
US3052240A
Cited
US3052239A
Cited
US3380451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |