Patent US921862A successfully refreshed from Google Patents.
US3203115A
Expired / Lapsed
US
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Toy educational clock
Assignee: Individual
•
Filing: 1963-05-20
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Granted: 1965-08-31
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Paul D Friday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:25
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/12; G09B1/00; G09B1/02; G09B1/16; G09B1/18; G09B1/22
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |