Patent US2988823A successfully refreshed from Google Patents.
US2988823A
Expired / Lapsed
US
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Transparent anatomical model
Assignee: RENWAL TOY Corp
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Filing: 1959-08-12
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Granted: 1961-06-20
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Expires: 1979-08-12
Abstract
No abstract record available.
Inventors
- 👤 Rosenbloom Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:36
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/28; G09B23/30; G09B23/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US411816A
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US2472819A
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US2611998A
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US2483034A
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US2551560A
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US2763070A
Cited
US2971271A
Cited
US2971272A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |