US3274738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machine
Assignee: Heald Machine Co
•
Filing: 1964-02-13
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Granted: 1966-09-27
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Expires: 1984-02-13
Abstract
No abstract record available.
Inventors
- 👤 Martin L Kuniholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:57
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AN INTERNAL GRINDING MACHINE, COMPRISING (A) A BASE, (B) A WORKPIECE SUPPORT ADAPTED TO HOLD A WORKPIECE, THE SAID SUPPORT BEING MOUNTED ON THE BASE FOR TRANSVERSE SLIDING MOTION THEREOVER, (C) A WHEELHEAD ADAPTED TO CARY AN ABRASIVE WHEEL PIVOTALLY MOUNTED ON THE BASE, (D) A HYDRAULIC LINEAR ACTUATOR FOR BRINGING ABOUT THE SLIDING MOTION BETWEEN THE SUPPORT AND THE BASE TO BRING ABOUT ENGAGEMENT BETWEEN THE WHEEL AND THE WORKPIECE,
Claim 2
Dependent Claim
71 words
AN INTERNAL GRINDING MACHINE, COMPRISING (A) A BASE, (B) A WORKPIECE SUPPORT ADAPTED TO HOLD A WORKPIECE, THE SAID SUPPORT BEING MOUNTED ON THE BASE FOR TRANSVERSE SLIDING MOTION THEREOVER, (C) A WHEELHEAD ADAPTED TO CARY AN ABRASIVE WHEEL PIVOTALLY MOUNTED ON THE BASE, (D) A HYDRAULIC LINEAR ACTUATOR FOR BRINGING ABOUT THE SLIDING MOTION BETWEEN THE SUPPORT AND THE BASE TO BRING ABOUT ENGAGEMENT BETWEEN THE WHEEL AND THE WORKPIECE,
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |