US2958593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low density open non-woven fibrous abrasive article
Assignee: 3M Co
•
Filing: 1960-01-11
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Granted: 1960-11-01
•
Expires: 1980-01-11
Abstract
No abstract record available.
Inventors
- 👤 Howard L Hoover
- 👤 Eugene J Dupre
- 👤 Walter J Rankin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:16
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; A; A47; A47L; A47L13/00; A47L13/02; A47L13/04; B; B24; B24D; B24D11/00; B24D11/001; B24D11/003; B24D11/005; B24D15/00; B24D15/04; B24D18/00; B24D18/0036; B24D3/00; D04H1/54; D04H1/593
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN OPEN LOW-DENSITY ABRASIVE ARTICLE COMPRISING A UNIFORM LOFTY OPEN NON-WOVEN THREE-DIMENSIONAL WEB FORMED OF MANY INTERLACED RANDOMLY EXTENDING FLEXIBLE DURABLE TOUGH RESILIENT ORGANIC FIBERS WHICH HAVE A DIAMETER OF FROM ABOUT 25 MICRONS TO ABOUT 250 MICRONS, WEB FIBERS BEING FIRMLY ADHESIVELY BONDED TOGETHER AT POINTS WHERE THEY CROSS AND CONTACT ONE ANOTHER TO FORM A THREE-DIMENSIONALLY INTERGATED STRUCTURE THROUGH OUT SAID WEB, AND ABRASIVE PARTICLES DISTRIBUTED WITHIN SAID WEB AND FIRMLY BONDED TO WEB FIBERS BY A RELATIVELY HARD RIGID BINDER, INTERSTICES BETWEEN ADJACENT FIBERS BEING OPEN SUBSTANTILALLY UNFILLED BY ADHESIVE BINDER OR ABRASIVE THERE BEING DEFINED THROUGHOUT SAID ARTICLE A TRI-DIMESIONALLY EXTENDING NETWORK OF INTERCOMMUNI-
Claim 2
Dependent Claim
108 words
AN OPEN LOW-DENSITY ABRASIVE ARTICLE COMPRISING A UNIFORM LOFTY OPEN NON-WOVEN THREE-DIMENSIONAL WEB FORMED OF MANY INTERLACED RANDOMLY EXTENDING FLEXIBLE DURABLE TOUGH RESILIENT ORGANIC FIBERS WHICH HAVE A DIAMETER OF FROM ABOUT 25 MICRONS TO ABOUT 250 MICRONS, WEB FIBERS BEING FIRMLY ADHESIVELY BONDED TOGETHER AT POINTS WHERE THEY CROSS AND CONTACT ONE ANOTHER TO FORM A THREE-DIMENSIONALLY INTERGATED STRUCTURE THROUGH OUT SAID WEB, AND ABRASIVE PARTICLES DISTRIBUTED WITHIN SAID WEB AND FIRMLY BONDED TO WEB FIBERS BY A RELATIVELY HARD RIGID BINDER, INTERSTICES BETWEEN ADJACENT FIBERS BEING OPEN SUBSTANTILALLY UNFILLED BY ADHESIVE BINDER OR ABRASIVE THERE BEING DEFINED THROUGHOUT SAID ARTICLE A TRI-DIMESIONALLY EXTENDING NETWORK OF INTERCOMMUNI-
References Cited (Backward Citations)
US2810426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |