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US1655197A
Expired / Lapsed
US
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Process for diminishing the resistance of currents in conduit pipes
Assignee: Individual
•
Filing: 1927-05-17
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Granted: 1928-01-03
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Expires: 1947-05-17
Abstract
No abstract record available.
Inventors
- 👤 Sauter Josef
- 👤 Levy Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:32
CPC Classifications
F; F15; F15D; F15D1/00; F15D1/02; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0391
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) | 1931-01-02 | 1931-07-04 | 1932-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-01-02 | 1935-07-04 | 1936-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-01-02 | 1939-07-04 | 1940-01-03 | $7700.00 | Window Closed / Lapsed |