Patent US1824516A successfully refreshed from Google Patents.
US1824516A
Expired / Lapsed
US
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Vein retainer
Assignee: Individual
•
Filing: 1930-05-05
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Granted: 1931-09-22
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Expires: 1950-05-05
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Tyvand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:58
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/42; A61M5/425; A61B; A61B17/00; A61B17/12; A61B17/132; A61B17/1322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-09-21 | 1935-03-23 | 1935-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-09-21 | 1939-03-23 | 1939-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-09-21 | 1943-03-23 | 1943-09-22 | $7700.00 | Window Closed / Lapsed |