US2829727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined time indicator and stethoscope chestpiece
Assignee: Individual
•
Filing: 1955-09-19
•
Granted: 1958-04-08
•
Expires: 1975-09-19
Abstract
No abstract record available.
Inventors
- 👤 Henry I Russek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:16
CPC Classifications
G; G04; G04B; G04B47/00; G04B47/06; G04B47/061; A; A61; A61B; A61B7/00; A61B7/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |