US2646798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge syringe
Assignee: Individual
•
Filing: 1950-09-21
•
Granted: 1953-07-28
•
Expires: 1970-09-21
Abstract
No abstract record available.
Inventors
- 👤 Frank E Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:04
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/24; A61M2005/2403; A61M2005/2407; A61M2005/2411; A61M2005/2485; A61M2005/2488; A61M5/31; A61M2005/3103; A61M2005/3104; A61M5/2448; A61M5/28; A61M5/285; A61M5/286; A61M5/32; A61M5/34; A61M5/347
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1388946A
Cited
US1529659A
Cited
US1715771A
Cited
US1929247A
Cited
US2300070A
Cited
US2193322A
Cited
US2542814A
Cited
US2549417A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |