Patent US3764419A successfully refreshed from Google Patents.
US3764419A
Expired / Lapsed
US
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Method of making a blasting agent having variable density
Assignee: Individual
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Filing: 1970-11-09
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Granted: 1973-10-09
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Expires: 1990-11-09
Abstract
Abstract AN ELASTOMERIC FILAMENTARY TACKIFYING COMPOSITION HAVING VARIABLE COHESIVE AND ADHESIVE PROPERTIES CAPABLE OF PREVENTING MIGRATION OF UNIFORMLY DISPOSED PARTICULATE CONSTITUENTS HAVING WIDELY VARYING DENSITIES; ONE EXAMPLE OF WHICH COMPRISES POWDERED POLYACRYLAMIDE, WATER AND AN ALCOHOL IN DESIRED PROPORTIONS. IT IS ESPECIALLY EFFECTIVE IN COMBINATIONS WHERE THE SAID CONSTITUENTS ARE A HIGH DENSITY PARTICULATE BLASTING COMPOSITION WITH A LOW DENSITY PARTICULATE BULKING AGENT.
Inventors
- 👤 H Sheeran
- 👤 M Oriard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:20
CPC Classifications
C; C06; C06B; C06B45/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |