US3447918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rust inhibitors
Assignee: Standard Oil Co
•
Filing: 1967-10-26
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Granted: 1969-06-03
•
Expires: 1987-10-26
Abstract
No abstract record available.
Inventors
- 👤 James W Amick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:07
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C08; C08F; C08F8/00; C08F8/12; C08F8/46; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C10L1/198; C23F11/12; C23F11/124; C23F11/173
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) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |