Patent US3284178A successfully refreshed from Google Patents.
US3284178A
Expired / Lapsed
US
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Metal backed abrasives
Assignee: Saint Gobain Abrasives Inc
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Filing: 1963-06-20
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Granted: 1966-11-08
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Expires: 1983-06-20
Abstract
No abstract record available.
Inventors
- 👤 William F Timmer
- 👤 Nolan A Curry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:01
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/14; B24D3/00; B24D3/02; B24D3/20; B24D3/28; C; C08; C08L; C08L61/00; C08L61/04; C08L61/06; C08L77/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
AN ABRASIIVE ARTICLE COMPRISING: A METAL BACKING MEMBER; A PRESIZE COATING HAVING A THICKNESS OF FROM 0.0001 INCH TO 0.005 INCH ADHERED TO ONE SURFACE OF SAID METAL BACKING, SAID PRESIZE COATING CNSISTING ESSENTIALLY OF A REACTION PRODUCT OF ALCOHOL-SOLUBLE NYLON HAVING AN INTRINSIC VISOSITY OF AT LEAST 0.4 WITH A THERMOSETTING, ALKALI-CATALYZED UNMODIFIED PHENOL-FORMALDEHYDE RESIN, THE RATIO OF NYLON TO RESIN RANGING FROM 19:1 TO 1:4; AND A PLURALITY OF ABRASIVE GRAINS ADHESIVELY BONDED TO SAID PRESIZE COATING.
Claim 2
Dependent Claim
79 words
AN ABRASIIVE ARTICLE COMPRISING: A METAL BACKING MEMBER; A PRESIZE COATING HAVING A THICKNESS OF FROM 0.0001 INCH TO 0.005 INCH ADHERED TO ONE SURFACE OF SAID METAL BACKING, SAID PRESIZE COATING CNSISTING ESSENTIALLY OF A REACTION PRODUCT OF ALCOHOL-SOLUBLE NYLON HAVING AN INTRINSIC VISOSITY OF AT LEAST 0.4 WITH A THERMOSETTING, ALKALI-CATALYZED UNMODIFIED PHENOL-FORMALDEHYDE RESIN, THE RATIO OF NYLON TO RESIN RANGING FROM 19:1 TO 1:4; AND A PLURALITY OF ABRASIVE GRAINS ADHESIVELY BONDED TO SAID PRESIZE COATING.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |