Patent US2945304A successfully refreshed from Google Patents.
US2945304A
Expired / Lapsed
US
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Periosomatic training devices
Assignee: Individual
•
Filing: 1959-04-29
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Granted: 1960-07-19
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Expires: 1979-04-29
Abstract
No abstract record available.
Inventors
- 👤 John V Niiranen
- 👤 Robert B Welden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:41
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/28; G09B23/30; G09B23/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |