Patent US2058360A successfully refreshed from Google Patents.
US2058360A
Expired / Lapsed
US
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Boring machine
Assignee: Heald Machine Co
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Filing: 1934-03-02
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Granted: 1936-10-20
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Expires: 1954-03-02
Abstract
No abstract record available.
Inventors
- 👤 William D Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:27
CPC Classifications
B; B23; B23B; B23B39/00; B23B39/02; Y; Y10; Y10T; Y10T408/00; Y10T408/16; Y10T408/165; Y10T408/17; Y10T408/172; Y10T408/83; Y10T408/85; Y10T408/854
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) | 1939-10-20 | 1940-04-20 | 1940-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-10-20 | 1944-04-20 | 1944-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-10-20 | 1948-04-20 | 1948-10-20 | $7700.00 | Window Closed / Lapsed |