US3671342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamite composition containing expanded thermoplastic beads
Assignee: Zeneca Inc
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Filing: 1970-01-02
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Granted: 1972-06-20
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Expires: 1990-01-02
Abstract
Abstract A DYNAMITE COMPOSITION COMPRISING AN INORGANIC OXIDIZER SALT, A LIQUID SENSITIZER, A GELATINIZING AGENT, AND EXPANDED THERMOPLASTIC BEADS AND A METHOD OF MAKING IT. THERMOPLASTICE BEADS, PREFERABLY OF POLYSTYRENE, CONTAINING A BLOWING AGENT SUCH AS ENTRAPPED GAS ARE EXPANDED WITH HEAT AND ARE MIXED WITH THE INORGANIC OXIDIZER SALT, THE LIQUID SENSITIZER, AND THE GELATINIZING AGENT.
Inventors
- 👤 Frank E Slawinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:25
CPC Classifications
C; C06; C06B; C06B23/00; C06B23/002; C06B23/003; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/118
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |