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US2625843A
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Machine for boring articles
Assignee: Tobin Arp Manufacturing Co
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Filing: 1948-11-12
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Granted: 1953-01-20
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Expires: 1968-11-12
Abstract
No abstract record available.
Inventors
- 👤 Ewald A Arp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:54
CPC Classifications
B; B23; B23B; B23B41/00; B23B41/12; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17017; Y10T279/17025; Y10T279/19; Y10T279/1926; Y10T279/1941
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) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |