Patent US3454273A successfully refreshed from Google Patents.
US3454273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exercise device of the twist board type
Assignee: VOGT APPLIANCE CORP
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Filing: 1966-07-18
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Granted: 1969-07-08
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Expires: 1986-07-18
Abstract
No abstract record available.
Inventors
- 👤 Edwin M Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:04
CPC Classifications
A; A63; A63B; A63B22/00; A63B22/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US568380A
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US1608704A
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US1565484A
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US1533500A
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US1989899A
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US2311274A
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US2459017A
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US3063714A
Cited
GB984944A
Cited
US3372930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |