US3364630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive roll
Assignee: Freeman Supply Co
•
Filing: 1964-09-11
•
Granted: 1968-01-23
•
Expires: 1984-09-11
Abstract
No abstract record available.
Inventors
- 👤 Gerald R Rusk
- 👤 Frederick M Hagquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:55
CPC Classifications
B; B24; B24D; B24D7/00; B24D7/16; B24D7/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
55 words
AN ASSEMBLY COMPRISING A REPLACEABLE ABRASIVE ROLL TELESCOPICALLY INSERTED DIRECTLY ONTO AND AROUND A ROTATABLY SUPPORTED SPINDLE, SAID ROLL COMPRISING: A THIN WALLED CONTAINER HAVING AN EXTERNAL SURFACE OF REVOLUTION, ABRASIVE PARTICLES UNIFORMLY AND FIRMLY AFFIXED TO SAID EXTERNAL SURFACE, A BODY OF A SUBSTANTIALLY RIGID FOAMED RESIN IN SAID CONTAINER AND BONDED THERETO, SAID
References Cited (Backward Citations)
US661282A
Cited
US1646852A
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US2021371A
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US2142873A
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US2862806A
Cited
US2950584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |