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Patent US2523972A successfully refreshed from Google Patents.
US2523972A
Expired / Lapsed
US
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Bearing bush
Assignee: ARTHUR WILFRED DULSON
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Filing: 1945-11-23
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Granted: 1950-09-26
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Expires: 1965-11-23
Abstract
No abstract record available.
Inventors
- 👤 Sharratt John Gilbert
- 👤 Sharratt Albert Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:15
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/70; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |