Patent US2793473A successfully refreshed from Google Patents.
US2793473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning and reaming device for metallic fittings and tubings
Assignee: Individual
•
Filing: 1956-07-27
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Granted: 1957-05-28
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Expires: 1976-07-27
Abstract
No abstract record available.
Inventors
- 👤 Hickman Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:36
CPC Classifications
B; B24; B24B; B24B23/00; B24B23/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US836712A
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US1180413A
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US1499519A
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US1635562A
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US1723009A
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US1923611A
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US1918132A
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US2218353A
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GB544503A
Cited
US2387138A
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US2602945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |