US2807920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool holder
Assignee: Individual
•
Filing: 1954-09-13
•
Granted: 1957-10-01
•
Expires: 1974-09-13
Abstract
No abstract record available.
Inventors
- 👤 Robert E Householder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:15
CPC Classifications
B; B24; B24B; B24B41/00; B24B41/06; B24B41/066; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/308792; Y10T82/00; Y10T82/25; Y10T82/2585
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US510817A
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US676413A
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US698521A
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US765198A
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US1048173A
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US1638086A
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US1807999A
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US2324025A
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US2324608A
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US2430984A
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US2583408A
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US2452988A
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US2478026A
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US2594574A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |