US3492544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsing method for electrochemically forming a film on a metal and product of the method
Assignee: AT&T Inc
•
Filing: 1967-10-19
•
Granted: 1970-01-27
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Expires: 1987-10-19
Abstract
No abstract record available.
Inventors
- 👤 Bruno J Falanga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:00
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2151806A
Cited
US2920018A
Cited
US3282821A
Cited
US3254014A
Cited
US3341445A
Cited
US3341444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |