US3480485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion resistant iron or steel
Assignee: Dow Chemical Co
•
Filing: 1967-12-15
•
Granted: 1969-11-25
•
Expires: 1987-12-15
Abstract
No abstract record available.
Inventors
- 👤 Gerald M Hart
- 👤 James K Ricke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:32
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C23C22/08; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2768104A
Cited
US2970129A
Cited
US2898233A
Cited
FR1268469A
Cited
US3215678A
Cited
US3211808A
Cited
US3234197A
Cited
US3239370A
Cited
US3192092A
Cited
US3249570A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |