Patent CH166706A successfully refreshed from Google Patents.
US2886884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive key extractor
Assignee: Individual
•
Filing: 1955-04-18
•
Granted: 1959-05-19
•
Expires: 1975-04-18
Abstract
No abstract record available.
Inventors
- 👤 Henry H Nelson
- 👤 Albert J Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:52
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/04; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US977018A
Cited
US1383382A
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US1449551A
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US1453895A
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US1634600A
Cited
US1661938A
Cited
US2326741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |