Patent US3400727A successfully refreshed from Google Patents.
US3400727A
Expired / Lapsed
US
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Carwashing apparatus
Assignee: Delta Manufacturing and Engineering Corp
•
Filing: 1966-04-26
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Granted: 1968-09-10
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Expires: 1986-04-26
Abstract
No abstract record available.
Inventors
- 👤 John L Daum
- 👤 Ray B Spurgin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:39
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1586997A
Cited
US1752316A
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US2602003A
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US2936770A
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US2750708A
Cited
US2896857A
Cited
US3167797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |