Patent US2425242A successfully refreshed from Google Patents.
US2425242A
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US
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Toolholder
Assignee: Individual
•
Filing: 1944-04-05
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Granted: 1947-08-05
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Expires: 1964-04-05
Abstract
No abstract record available.
Inventors
- 👤 John B Herring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:32
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/04; B23B29/06; Y; Y10; Y10T; Y10T407/00; Y10T407/22; Y10T407/2202; Y10T407/2222; Y10T407/2226; Y10T407/2228; Y10T407/2238; Y10T407/224; Y10T407/2242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1677143A
Cited
US714942A
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US861768A
Cited
US1432500A
Cited
US1476262A
Cited
FR658285A
Cited
GB428789A
Cited
US2254056A
Cited
US2324603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-04 | 1951-02-03 | 1951-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-04 | 1955-02-03 | 1955-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-04 | 1959-02-03 | 1959-08-05 | $7700.00 | Window Closed / Lapsed |