US3149024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive paper filled with pellets of spray dried siliceous pigments
Assignee: JM Huber Corp
•
Filing: 1962-03-26
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Granted: 1964-09-15
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Behn Prescott
- 👤 Alvin C Whitaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:41
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/63; D21H17/67; D21H17/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
SORPTIVE, ABRASIVE, PEBBLE-SURFACED PAPER HAVING DISPERSED THEREIN A SILICEOUS PIGMENT IN THE FORM OF DIFFICULTLY FRIABLE SPRAY DRIED PELLETS CONTAINING AN INNER REINFORCING STRUCTURE.
Claim 2
Dependent Claim
24 words
SORPTIVE, ABRASIVE, PEBBLE-SURFACED PAPER HAVING DISPERSED THEREIN A SILICEOUS PIGMENT IN THE FORM OF DIFFICULTLY FRIABLE SPRAY DRIED PELLETS CONTAINING AN INNER REINFORCING STRUCTURE.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |