US2555822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scrubbing machine
Assignee: Individual
•
Filing: 1946-12-30
•
Granted: 1951-06-05
•
Expires: 1966-12-30
Abstract
No abstract record available.
Inventors
- 👤 Smith Ralph Conway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:16
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/02; E01H1/05; E01H1/053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US42287A
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US905190A
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US1116788A
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US1294881A
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US1488728A
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US1550102A
Cited
US1773992A
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US1707575A
Cited
US1743245A
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US2205249A
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US2252269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |