Patent US4272932A successfully refreshed from Google Patents.
US2516705A
Expired / Lapsed
US
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Tricycle frame structure
Assignee: Murray Ohio Manufacturing Co
•
Filing: 1947-05-06
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Granted: 1950-07-25
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Expires: 1967-05-06
Abstract
No abstract record available.
Inventors
- 👤 Herman L Kraeft
- 👤 Schreckengost Viktor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:14
CPC Classifications
B; B62; B62K; B62K9/00; B62K9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US506194A
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US589205A
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US622526A
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US671478A
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US1559276A
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US1713999A
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US2112475A
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US2181413A
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US2202479A
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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) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |