Patent US2065486A successfully refreshed from Google Patents.
US2065486A
Expired / Lapsed
US
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Valve seat tool
Assignee: Albertson and Co Inc
•
Filing: 1931-07-17
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Granted: 1936-12-22
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Expires: 1951-07-17
Abstract
No abstract record available.
Inventors
- 👤 Frans O Albertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:21
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/02; B23C3/05; Y; Y10; Y10S; Y10S408/00; Y10S408/709; Y10T; Y10T408/00; Y10T408/55; Y10T408/557; Y10T408/558; Y10T408/5583; Y10T408/5584; Y10T408/564; Y10T408/5647; Y10T408/65; Y10T408/675; Y10T408/6793
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-12-22 | 1940-06-22 | 1940-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-12-22 | 1944-06-22 | 1944-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-12-22 | 1948-06-22 | 1948-12-22 | $7700.00 | Window Closed / Lapsed |