Patent US3063170A successfully refreshed from Google Patents.
US3063170A
Expired / Lapsed
US
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Replaceable top lift
Assignee: FITZ ON HEEL CORP
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Filing: 1958-12-09
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Granted: 1962-11-13
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Expires: 1978-12-09
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Purtell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:58
CPC Classifications
A; A43; A43B; A43B21/00; A43B21/36; A43B21/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1844248A
Cited
US1995058A
Cited
US2006401A
Cited
US1947840A
Cited
US2111314A
Cited
FR815336A
Cited
US2875532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |