Patent US2533005A successfully refreshed from Google Patents.
US2533005A
Expired / Lapsed
US
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Teeter-totter and merry-go-round
Assignee: Individual
•
Filing: 1945-08-08
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Granted: 1950-12-05
•
Expires: 1965-08-08
Abstract
No abstract record available.
Inventors
- 👤 Earl E Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:19
CPC Classifications
A; A63; A63G; A63G1/00; A63G1/12; A63G1/20; A63G11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US389961A
Cited
US1073736A
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GB190205763A
Cited
US1258578A
Cited
US1344725A
Cited
US1436426A
Cited
US1552841A
Cited
US1904687A
Cited
US2033523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |