US2537550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paste-dispensing syringe for medical purposes
Assignee: Individual
•
Filing: 1947-10-20
•
Granted: 1951-01-09
•
Expires: 1967-10-20
Abstract
No abstract record available.
Inventors
- 👤 Roos Walther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:24
CPC Classifications
A; A61; A61M; A61M3/00; A61M5/00; A61M5/178; A61M5/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1606034A
Cited
US978488A
Cited
US1512294A
Cited
US1725177A
Cited
US1704678A
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US1929247A
Cited
US1993630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |