Patent EP0427970A2 successfully refreshed from Google Patents.
Patent US2547223A successfully refreshed from Google Patents.
US2547223A
Expired / Lapsed
US
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Apparatus for refinishing floors
Assignee: Individual
•
Filing: 1946-05-13
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Granted: 1951-04-03
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Expires: 1966-05-13
Abstract
No abstract record available.
Inventors
- 👤 Lombardo Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:21
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/02; A47L11/10; A47L11/12; A47L11/125; A47L11/4052; A47L11/4055; A47L11/408; A47L11/4083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US209185A
Cited
US1560445A
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US1268524A
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US1818916A
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US1961518A
Cited
US2036115A
Cited
US2162310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |