US3024568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy stethoscope with electronically simulated heartbeat
Assignee: Individual
•
Filing: 1960-03-09
•
Granted: 1962-03-13
•
Expires: 1980-03-09
Abstract
No abstract record available.
Inventors
- 👤 Harry E Barnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:25
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/30; A63H33/3094
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1832402A
Cited
GB465817A
Cited
US2715296A
Cited
US2794298A
Cited
US2954642A
Cited
US2957273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |