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US3481851A
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Apparatus and procedure for reconditioning metal treating solutions
Assignee: LANCY LAB
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Filing: 1969-01-10
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Granted: 1969-12-02
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Expires: 1989-01-10
Abstract
No abstract record available.
Inventors
- 👤 Leslie E Lancy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:13
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; C; C01; C01G; C01G37/00; C01G37/02; C01G37/033; C23; C23G; C23G1/00; C23G1/36; C25; C25B; C25B9/00; C25B9/17; C25B9/19; C25D; C25D11/00; C25D11/02; C25D11/34; C25D21/00; C25D21/16; C25D21/18; B01D2311/00; B01D2311/26; B01D2311/2684; B01D2321/00; B01D2321/16; B01D2321/168; C01P; C01P2004/00; C01P2004/80; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |