US3372322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stepping motor feed for a grinder including a high speed slewing motor
Assignee: Heald Machine Co
•
Filing: 1967-07-11
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Granted: 1968-03-05
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Expires: 1987-07-11
Abstract
No abstract record available.
Inventors
- 👤 George H Lockwood
- 👤 Glenn D Johnson
- 👤 Edward G Robillard
- 👤 Henry E Hirvi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:30
CPC Classifications
B; B23; B23Q; B23Q15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2674706A
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US2687759A
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US3015806A
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US3089988A
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US3191205A
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US3246218A
Cited
US3231801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |