Patent US3486797A successfully refreshed from Google Patents.
US3486797A
Expired / Lapsed
US
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Safety device for wheels
Assignee: JOHN T OSBORNE
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Filing: 1968-04-10
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Granted: 1969-12-30
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Expires: 1988-04-10
Abstract
No abstract record available.
Inventors
- 👤 John T Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:43
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/02; F16B39/10; B; B60; B60B; B60B3/00; B60B3/14; B60B3/16; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/945; Y10S411/955; Y10S411/974; Y10S411/984; Y10S411/989
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US900202A
Cited
DE527998C
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US2280594A
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US2591631A
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US2626837A
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US2758628A
Cited
US2798770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |