Patent US2093743A successfully refreshed from Google Patents.
US2093743A
Expired / Lapsed
US
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Boring head
Assignee: Individual
•
Filing: 1936-08-26
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Granted: 1937-09-21
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Expires: 1956-08-26
Abstract
No abstract record available.
Inventors
- 👤 Edward C Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:00
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/03; B23B29/034; B23B29/03432; B23B29/03435; B23B29/03439; B23B2260/00; B23B2260/088; Y; Y10; Y10T; Y10T279/00; Y10T279/14; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8595; Y10T82/00; Y10T82/25; Y10T82/2529
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) | 1940-09-20 | 1941-03-22 | 1941-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-09-20 | 1945-03-22 | 1945-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-09-20 | 1949-03-22 | 1949-09-21 | $7700.00 | Window Closed / Lapsed |