US2539993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable wheel support for luggage
Assignee: Individual
•
Filing: 1946-07-02
•
Granted: 1951-01-30
•
Expires: 1966-07-02
Abstract
No abstract record available.
Inventors
- 👤 Francis W Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:24
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/10; B62B1/12; B62B1/125; A; A45; A45C; A45C5/00; A45C5/14; A45C5/146; A45C13/00; A45C13/38; A45C13/385; B62B2202/00; B62B2202/24; B62B2205/00; B62B2205/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US44936A
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US447625A
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US854602A
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US1021964A
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US1442733A
Cited
FR573486A
Cited
US2002836A
Cited
US2033192A
Cited
US2068295A
Cited
US2439660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |