Patent US3057636A successfully refreshed from Google Patents.
US3057636A
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US
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Luggage means with retractable wheels
Assignee: BETTIE K KAUFFMAN
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Filing: 1960-08-16
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Granted: 1962-10-09
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Expires: 1980-08-16
Abstract
No abstract record available.
Inventors
- 👤 Ettorre Alfred J D
- 👤 Arthur W Heck
- 👤 William H Kauffman
- 👤 Donakl L Ranville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:04
CPC Classifications
B; B60; B60B; B60B33/00; B60B33/04; B60B33/06; A; A45; A45C; A45C5/00; A45C5/14; A45C5/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR614687A
Cited
AU99836A
Cited
FR889718A
Cited
US2372845A
Cited
GB620513A
Cited
US2661220A
Cited
FR1095520A
Cited
US2849151A
Cited
US2925283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |