Patent US3019534A successfully refreshed from Google Patents.
US3019534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interchangeable shoe soles and heels
Assignee: Individual
•
Filing: 1959-04-16
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Granted: 1962-02-06
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Expires: 1979-04-16
Abstract
No abstract record available.
Inventors
- 👤 Robert T Kauffman
- 👤 Arlitz Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:05
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/28; A43B13/36; A43B3/00; A43B3/0036; A43B3/0047; A43B3/24; A43B3/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190625849A
Cited
GB190726704A
Cited
CH45118A
Cited
AT47302B
Cited
AT47481B
Cited
GB191401013A
Cited
US1542174A
Cited
FR706305A
Cited
CH266627A
Cited
DE927795C
Cited
DE828356C
Cited
DE802801C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |