US3135590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimensionally stabilized paper and coated abrasives made therefrom
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1957-07-12
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Granted: 1964-06-02
•
Expires: 1977-07-12
Abstract
No abstract record available.
Inventors
- 👤 John E Campbell
- 👤 Lester A Hansen
- 👤 Charles E Lanyon
- 👤 Louise S Oglesby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:10
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A COATED ABRASIVE COMPRISING A FLEXIBLE PAPER BACKING WITH ABRASIVE GRAINS ADHESIVELY ANCHORED TO ONE SIDE OF SAID BACKING, THE FIBRE CONTENT OF SAID PAPER CONSISTING A SUBSTANTIALLY HOMOGENEOUS MIXTURE OF AT LEAST 60% BY VOLUME, OF THE TOTAL FIBRE VOLUME, OF HYDRATABLE CELLULOSIC PAPER MAKING FIBRES AND NOT MORE THAN 40% BY VOLUME OF SAID TOTAL FIBRE VOLUME BEING NON-HYDRATABLE FIBRES HAVING A MOISTURE REGAIN VALUE UP TO ABOUT 1% SELECTED FROM THE GROUP CONSISTING OF PAPERMAKING AND TEXTILE FIBRES, SAID NON-HYDRATABLE FIBRES HAVING SUBSTANTIALLY THE SAME DIMENSIONS AT A TEMPERATURE OF 70%F. THROUGHOUT THE RELATIVE HUMIDITY RANGE OF 20% TO 65% AT 70*F., AND IN WHICH THE PERCENT BY VOLUME OF THE NON-HYDRATABLE FIBRES IS NOT LESS THAN ABOUT 2% BY VOLUME BASED ON THE TOTAL VOLUME OF THE PAPER SHEET.
Claim 2
Dependent Claim
133 words
A COATED ABRASIVE COMPRISING A FLEXIBLE PAPER BACKING WITH ABRASIVE GRAINS ADHESIVELY ANCHORED TO ONE SIDE OF SAID BACKING, THE FIBRE CONTENT OF SAID PAPER CONSISTING A SUBSTANTIALLY HOMOGENEOUS MIXTURE OF AT LEAST 60% BY VOLUME, OF THE TOTAL FIBRE VOLUME, OF HYDRATABLE CELLULOSIC PAPER MAKING FIBRES AND NOT MORE THAN 40% BY VOLUME OF SAID TOTAL FIBRE VOLUME BEING NON-HYDRATABLE FIBRES HAVING A MOISTURE REGAIN VALUE UP TO ABOUT 1% SELECTED FROM THE GROUP CONSISTING OF PAPERMAKING AND TEXTILE FIBRES, SAID NON-HYDRATABLE FIBRES HAVING SUBSTANTIALLY THE SAME DIMENSIONS AT A TEMPERATURE OF 70%F. THROUGHOUT THE RELATIVE HUMIDITY RANGE OF 20% TO 65% AT 70*F., AND IN WHICH THE PERCENT BY VOLUME OF THE NON-HYDRATABLE FIBRES IS NOT LESS THAN ABOUT 2% BY VOLUME BASED ON THE TOTAL VOLUME OF THE PAPER SHEET.
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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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |