Patent US606835A successfully refreshed from Google Patents.
Patent US2884728A successfully refreshed from Google Patents.
US2884728A
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US
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Apparatus and method for removing metal from the surface of a metal object
Assignee: Turco Products Inc
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Filing: 1954-08-16
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Granted: 1959-05-05
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Expires: 1974-08-16
Abstract
No abstract record available.
Inventors
- 👤 Emmette R Holman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:03
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/46; C23F1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US82652A
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US362971A
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US1146071A
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US1166378A
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FR583929A
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US1716270A
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US1908487A
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US1947391A
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US2396685A
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US2405105A
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US2668130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |