Patent US643713A successfully refreshed from Google Patents.
US643713A
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Boring attachment for metal-working lathes.
Assignee: WESTERN Manufacturing CO
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Filing: 1899-06-05
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Granted: 1900-02-20
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Expires: 1919-06-05
Abstract
No abstract record available.
Inventors
- 👤 Ora E Converse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:03
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/14; B23B27/16; B23B27/1685; B23B27/1696; Y; Y10; Y10T; Y10T407/00; Y10T407/22; Y10T407/2222; Y10T407/2226; Y10T407/223; Y10T407/2234; Y10T407/2236; Y10T407/225; Y10T407/2266; Y10T407/227; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/854; Y10T408/855; Y10T82/00; Y10T82/25; Y10T82/2585; Y10T82/2587
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) | 1903-02-20 | 1903-08-22 | 1904-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-02-20 | 1907-08-22 | 1908-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-02-20 | 1911-08-22 | 1912-02-21 | $7700.00 | Window Closed / Lapsed |