US3043673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fill-resistant flexible abrasive sheet
Assignee: 3M Co
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Filing: 1958-11-17
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Granted: 1962-07-10
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Expires: 1978-11-17
Abstract
No abstract record available.
Inventors
- 👤 William A Klein
- 👤 John G Wirsig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:00
CPC Classifications
B; B24; B24D; B24D11/00; C; C08; C08K; C08K5/00; C08K5/04; C08K5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A FLELXIBLE COATED ABRASSIVIE SSHEET WHICH IS HIGHLY FILLRESISTANT TO LEATHER AND SIMILAR MATERIAL COMPRISSING A FLEXIBLE BACKING AND ABRASIVE GRAINS FIRMLY BONDED THERETO BY A TOTAL BINDER PRESENT IN A HIGH BINDER TO MINERAL RATIO AT A GLOSS VALUE OF AT LEAST ABOUT 5 UNITS, SAID BINDER AT THE SURFACE THEREOF COMPRISING A HARDENED PHEONL-ALDEHYDE RESIN HAVING UNIFORMLY DISTRIBUTED THEREIN AN OXYCONTAINING COMPOUND COMPATIBLE WITH THE REMAINING BINDER CONSTTITUENTS AND SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC POLYHDRIC ALCOHOLS AND AL IPHATIC POLYETHERS.
Claim 2
Dependent Claim
84 words
A FLELXIBLE COATED ABRASSIVIE SSHEET WHICH IS HIGHLY FILLRESISTANT TO LEATHER AND SIMILAR MATERIAL COMPRISSING A FLEXIBLE BACKING AND ABRASIVE GRAINS FIRMLY BONDED THERETO BY A TOTAL BINDER PRESENT IN A HIGH BINDER TO MINERAL RATIO AT A GLOSS VALUE OF AT LEAST ABOUT 5 UNITS, SAID BINDER AT THE SURFACE THEREOF COMPRISING A HARDENED PHEONL-ALDEHYDE RESIN HAVING UNIFORMLY DISTRIBUTED THEREIN AN OXYCONTAINING COMPOUND COMPATIBLE WITH THE REMAINING BINDER CONSTTITUENTS AND SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC POLYHDRIC ALCOHOLS AND AL IPHATIC POLYETHERS.
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) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |