US2744527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Syringes and syringe mixers
Assignee: Individual
•
Filing: 1952-04-21
•
Granted: 1956-05-08
•
Expires: 1972-04-21
Abstract
No abstract record available.
Inventors
- 👤 Barrett Altina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:03
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/28; A61M5/281; A61M5/282
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US388029A
Cited
US1021146A
Cited
FR832493A
Cited
GB520414A
Cited
FR997245A
Cited
US2535310A
Cited
DE809698C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |