US2584172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifriction thrust bearing for electric socket wrenches
Assignee: Individual
•
Filing: 1947-04-01
•
Granted: 1952-02-05
•
Expires: 1967-04-01
Abstract
No abstract record available.
Inventors
- 👤 Burl R Underwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:49
CPC Classifications
B; B25; B25B; B25B21/00; F; F16; F16C; F16C19/00; F16C19/02; F16C19/14; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19628
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US989626A
Cited
US1299591A
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US1384811A
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US1397317A
Cited
US1462938A
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US1581927A
Cited
US1734406A
Cited
US1832312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |