Patent US2647272A successfully refreshed from Google Patents.
US2647272A
Expired / Lapsed
US
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Apparatus adapted for use in washing eaves of railway and other vehicles and embodying one or more rotary power-driven brushes mounted to swing bodily up and down and also to tilt
Assignee: Whiting Corp
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Filing: 1948-09-16
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Granted: 1953-08-04
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Expires: 1968-09-16
Abstract
No abstract record available.
Inventors
- 👤 Louis D Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:29
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04; B60S3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1827887A
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US1798215A
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US1908788A
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US1962167A
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US2248699A
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US2215692A
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US2257255A
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US2175296A
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US2296934A
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US2299850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |