Patent US1997013A successfully refreshed from Google Patents.
US1997013A
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Method and apparatus for treating pipes
Assignee: U S Galvanizing & Plating Equi
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Filing: 1930-11-18
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Granted: 1935-04-09
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Expires: 1950-11-18
Abstract
No abstract record available.
Inventors
- 👤 Potthoff Kurt Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:49
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/02; B65G49/04; B65G49/0404; B65G49/0409; B65G49/0413; B65G49/0418; B65G49/0436; B65G49/044; B65G49/045; B65G49/0468; C; C23; C23C; C23C2/00
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) | 1938-04-08 | 1938-10-08 | 1939-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-08 | 1942-10-08 | 1943-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-08 | 1946-10-08 | 1947-04-09 | $7700.00 | Window Closed / Lapsed |