Patent US1325128A successfully refreshed from Google Patents.
Patent US3011882A successfully refreshed from Google Patents.
US3011882A
Expired / Lapsed
US
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Coated abrasives
Assignee: Saint Gobain Abrasives Inc
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Filing: 1958-02-27
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Granted: 1961-12-05
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Expires: 1978-02-27
Abstract
No abstract record available.
Inventors
- 👤 James R Quinian
- 👤 James W Sprague
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:17
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/02; B24D3/00; B24D3/001; B24D3/002; B24D3/004; C; C08; C08L; C08L55/00; C08L55/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/3187; Y10T428/31873
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
149 words
A FLEXIBLE COATED ABRASIVE SHEET COMPRISING: A WOVEN CLOTH BACKING SHEET PRECOATED WITH AN ELASTOMER WHICH IS A TERPOLYMER OF BUTADIENE SYRENE, AND ACRYLO NITRILE, CONTAINING AT LEAST 5% OF COMBINED STYRENE BY WEIGHT, AND FILM FORMING, STRENGTH IMPARTING, THERMOSETTING RESIN COMPATIBLE WITH SAID ELASTOMER, SELECTED FROM THE GRUOP CONSISTING OF PHENOL-ADEHYDE RESINS AND UREA-ALDEHYDE RESINS, AND A RESINOUS BONDING COAT SELECTED FROM THE GROUP CONSISTING OF PHENOL-ADEHYDE RESINS AND UREA-ALDEHYDE RESINS ON ONE SIDE OF SAID BACKING SHEET, A PLURALITY OF ABRASIVE GRAINS BONDED BY SAID BONDING COAT; SAID SHEET CONTAINING SAID FILM FORMING RESIN, EXCLUSIVE OF SAID BONDING COAT, IN AN AMOUNT OF FROM 1 TO 30 PARTS OF RESIN PER 100 PARTS OF ELASTOMER, SAID FILM FORMING RESIN BEING PRESENT AT THE INTERFACE BETWEEN THE PRECOATING MATERIAL AND SAID BONDING COAT, SAID ELASTOMER BEING PRESENT AT THE INTERFACE BETWEEN SAID WOVEN CLOTH AND THE PRECOATING MATERIAL.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |