US3277611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulpstones and method of making
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1964-04-14
•
Granted: 1966-10-11
•
Expires: 1984-04-14
Abstract
No abstract record available.
Inventors
- 👤 Arnold M Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:49
CPC Classifications
B; B24; B24D; B24D5/00; B24D5/06; B24D5/08; B24D18/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PULPSTONE COMPRISING A CORE HAVING A GENERALLY CIRCULAR CROSS-SECTION AND A PLURALITY OF SEGMENTAL BLOCKS SECURED ABOUT AND IN CONTACT WITH THE PERIPHERAL SURFACE OF THE CORE, SAID BLOCKS COLLECTIVELY FORMING AN ABRASIVE FACING AROUND THE CORE, MEANS SECURING THE BLOCKS TO THE CORE IN COMPRESSIVE CONTACT WITH THE PERIPHERAL SURFACE AND SEPARATE REINFORCING MEANS STRESSED IN TENSION DISPOSED IN THE CORE FOR CONSTRICTIVELY COMPRESSING THE CORE
Claim 2
Dependent Claim
68 words
A PULPSTONE COMPRISING A CORE HAVING A GENERALLY CIRCULAR CROSS-SECTION AND A PLURALITY OF SEGMENTAL BLOCKS SECURED ABOUT AND IN CONTACT WITH THE PERIPHERAL SURFACE OF THE CORE, SAID BLOCKS COLLECTIVELY FORMING AN ABRASIVE FACING AROUND THE CORE, MEANS SECURING THE BLOCKS TO THE CORE IN COMPRESSIVE CONTACT WITH THE PERIPHERAL SURFACE AND SEPARATE REINFORCING MEANS STRESSED IN TENSION DISPOSED IN THE CORE FOR CONSTRICTIVELY COMPRESSING THE CORE
References Cited (Backward Citations)
USRE19678E
Cited
US699302A
Cited
US1865523A
Cited
US2177550A
Cited
US2279486A
Cited
US2516693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |