US2186018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preventing rusting of ferrous metal surfaces
Assignee: Atlantic Richfield Co
•
Filing: 1937-11-20
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Granted: 1940-01-09
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Expires: 1957-11-20
Abstract
No abstract record available.
Inventors
- 👤 William K Griesinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:24
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10N; C10N2030/00; C10N2030/12; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678
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) | 1943-01-08 | 1943-07-10 | 1944-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-08 | 1947-07-10 | 1948-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-08 | 1951-07-10 | 1952-01-09 | $7700.00 | Window Closed / Lapsed |