Patent US3494795A successfully refreshed from Google Patents.
US3494795A
Expired / Lapsed
US
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Spray cleaning method for removing oil,grease,dirt and embedded oxides from painted surfaces
Assignee: Fremont Industries Inc
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Filing: 1967-08-07
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Granted: 1970-02-10
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Expires: 1987-08-07
Abstract
No abstract record available.
Inventors
- 👤 Edward H Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:12
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2086; C11D3/02; C11D3/04; C11D3/042; C11D3/2068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2199712A
Cited
US2399267A
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US2687346A
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US2942956A
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US3239467A
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US3330769A
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US3438799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |