Patent US2689577A successfully refreshed from Google Patents.
US2689577A
Expired / Lapsed
US
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Apparatus for washing vehicles
Assignee: Choldun Manufacturing Corp
•
Filing: 1951-06-12
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Granted: 1954-09-21
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Expires: 1971-06-12
Abstract
No abstract record available.
Inventors
- 👤 Henry M Dunn
- 👤 Oles David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:55
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1137626A
Cited
USRE23294E
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US1508495A
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GB274546A
Cited
GB289652A
Cited
US1777152A
Cited
US2233965A
Cited
US2158914A
Cited
US2536843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |