Patent US3313021A successfully refreshed from Google Patents.
US2528843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the treatment of intermittent claudication
Assignee: J PHILIP SAMPSON
•
Filing: 1945-12-05
•
Granted: 1950-11-07
•
Expires: 1965-12-05
Abstract
No abstract record available.
Inventors
- 👤 Henry I Poor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:57
CPC Classifications
A; A61; A61H; A61H9/00; A61H9/005; A61H9/0078; Y; Y10; Y10S; Y10S128/00; Y10S128/20; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86911
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |