Patent US1811298A successfully refreshed from Google Patents.
US1811298A
Expired / Lapsed
US
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Process and product for protecting aluminium, magnesium and their alloys against corrosion
Assignee: Continentale Parker SA
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Filing: 1929-10-21
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Granted: 1931-06-23
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Expires: 1949-10-21
Abstract
No abstract record available.
Inventors
- 👤 Boulanger Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:23
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/22; B65D5/2004; B65D5/2009; B65D5/2052; B65D5/2057; B65D5/42; B65D5/4295; B65D5/44; B65D5/441; C; C23; C23C; C23C22/00; C23C22/05; C23C22/60; C25; C25D; C25D11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-06-22 | 1934-12-22 | 1935-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-22 | 1938-12-22 | 1939-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-22 | 1942-12-22 | 1943-06-23 | $7700.00 | Window Closed / Lapsed |