US2800403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded abrasive and method for producing it
Assignee: Akzo Nobel UK PLC
•
Filing: 1953-11-12
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Granted: 1957-07-23
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Expires: 1973-11-12
Abstract
No abstract record available.
Inventors
- 👤 William J W Bosler
- 👤 Howard L Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:28
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; B24D3/28; B24D3/285; B24D3/34; B24D3/342; B24D3/344
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
44 words
A METHOD FOR PRODUCING A MOLDED ABRASIVE PRODUCT COMPRISING THE STEPS OF WETTING ABRASIVE GRITS WITH A LIQUID A-STAGE PHENOL-FORMALDEHYDE CONDENSATE, THEREAFTER MIXING A CHOPPED RAG FILLER IMPREGNATED WITH AN AMINO-TRIAZINE-ALDEHYDE CONDENSATION PRODUCTWITH THE WETTED GRITS AND PRESSING THE MIXTURE AT AN ELEVATED TEMPERATURE.
References Cited (Backward Citations)
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US2215380A
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US2262728A
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US2412599A
Cited
US2413729A
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US2527628A
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US2397101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-22 | 1961-01-21 | 1961-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-22 | 1965-01-21 | 1965-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-22 | 1969-01-21 | 1969-07-23 | $7700.00 | Window Closed / Lapsed |