US1664800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical method of and means for protecting buried pipe lines against corrosion
Assignee: PETER Q NYCE
•
Filing: 1924-12-05
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Granted: 1928-04-03
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Expires: 1944-12-05
Abstract
No abstract record available.
Inventors
- 👤 Mills Ronald Van Auken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; Y; Y10; Y10S; Y10S138/00; Y10S138/06; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6991; Y10T137/7025
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) | 1931-04-03 | 1931-10-03 | 1932-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-04-03 | 1935-10-03 | 1936-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-04-03 | 1939-10-03 | 1940-04-03 | $7700.00 | Window Closed / Lapsed |