US2728341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic syringe
Assignee: Individual
•
Filing: 1951-11-05
•
Granted: 1955-12-27
•
Expires: 1971-11-05
Abstract
No abstract record available.
Inventors
- 👤 Zbislaw M Roehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:56
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/28; A61M5/31; A61M5/315; A61M5/31501; A61M5/31505
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US715290A
Cited
US1529659A
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US1718604A
Cited
US1971687A
Cited
US2233554A
Cited
US2461481A
Cited
US2550394A
Cited
US2561233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |