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US2870688A
Expired / Lapsed
US
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Bi-level broaching machine
Assignee: LaPointe Hudson Broach
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Filing: 1956-12-07
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Granted: 1959-01-27
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Expires: 1976-12-07
Abstract
No abstract record available.
Inventors
- 👤 Oliver W Bonnafe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:25
CPC Classifications
B; B23; B23D; B23D37/00; B23D37/02; B23D37/06; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/5129; Y10T409/00; Y10T409/40; Y10T409/402275; Y10T409/403675; Y10T409/40385; Y10T409/404375; Y10T409/405775; Y10T409/40595; Y10T83/00; Y10T83/566; Y10T83/5669
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) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |