US3491027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and method for cleaning salt residues from metal surfaces
Assignee: United States Department of the Navy
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Filing: 1966-02-28
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Granted: 1970-01-20
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Expires: 1986-02-28
Abstract
No abstract record available.
Inventors
- 👤 Hayward R Baker
- 👤 Paul B Leach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:07
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/08; C09; C09D; C09D9/00; C11; C11D; C11D7/00; C11D7/02; C11D7/04; C11D7/10; C11D7/12; C11D7/22; C11D7/26; C11D7/268; C11D7/40; C11D7/44; C23; C23G; C23G1/00; C23G1/24; C23G1/26; H; H01; H01M; H01M50/00; H01M50/50; H01M50/571; C11D2111/00; C11D2111/10; C11D2111/14; C11D2111/16; Y; Y02; Y02E; Y02E60/00; Y02E60/10
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) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |