Patent US2924539A successfully refreshed from Google Patents.
US2924539A
Expired / Lapsed
US
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Wetting compound for colored aluminum anodized surfaces
Assignee: Midwest Manuf Corp
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Filing: 1956-10-26
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Granted: 1960-02-09
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Expires: 1976-10-26
Abstract
No abstract record available.
Inventors
- 👤 Arndt Herbert
- 👤 Seiler Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:06
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18; C25D11/24; C25D11/246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2598213A
Cited
US2680081A
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US2788292A
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US2711974A
Cited
US2776918A
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US2767106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |