US3528165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibiting process
Assignee: United States Department of the Navy
•
Filing: 1967-04-24
•
Granted: 1970-09-15
•
Expires: 1987-04-24
Abstract
No abstract record available.
Inventors
- 👤 Forrest S Williams
- 👤 Robert L Abbott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:14
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/10; F; F16; F16B; F16B33/00; F16B33/004; F16B33/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US807656A
Cited
US1916989A
Cited
US2111557A
Cited
US2167686A
Cited
US3219748A
Cited
US3357620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |