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Patent US2604738A successfully refreshed from Google Patents.
US2604738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toolholder
Assignee: Individual
•
Filing: 1950-07-28
•
Granted: 1952-07-29
•
Expires: 1970-07-28
Abstract
No abstract record available.
Inventors
- 👤 John W Ramey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:22
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/06; B24B41/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US388784A
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US824275A
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US1014649A
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US850084A
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US870365A
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US975329A
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US1061809A
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US1204457A
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GB115898A
Cited
GB563292A
Cited
US2346300A
Cited
US2544097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |