Patent US2756449A successfully refreshed from Google Patents.
US2756449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for washing automobiles
Assignee: Individual
•
Filing: 1952-02-19
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Granted: 1956-07-31
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Expires: 1972-02-19
Abstract
No abstract record available.
Inventors
- 👤 Ray T Dewey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:51
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04; B60S3/045; B60S3/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US454117A
Cited
US1304094A
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US1272715A
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US1334911A
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US1845780A
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US2013847A
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US2064903A
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US2316326A
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US2564031A
Cited
US2606334A
Cited
US2598699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |