US2689161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heart sojjnd jumplifier
Assignee: —
•
Filing: —
•
Granted: 1954-09-14
•
Expires: 1971-09-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:11
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/24; A61B5/316; A61B5/318; A61B5/333; A61B5/30; A61B5/307; A61B5/308
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1647710A
Cited
US2073412A
Cited
US2131365A
Cited
US1936438A
Cited
US2173427A
Cited
US2173426A
Cited
US2317025A
Cited
US2245365A
Cited
US2457744A
Cited
US2370483A
Cited
US2502419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |