Patent US1600583A successfully refreshed from Google Patents.
Patent US3132585A successfully refreshed from Google Patents.
US3132585A
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Detonator having a priming sponge
Assignee: Asahi Kasei Corp
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Filing: 1961-01-03
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Granted: 1964-05-12
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Expires: 1981-01-03
Abstract
No abstract record available.
Inventors
- 👤 Higashishima Sunao
- 👤 Suzuki Teruhiko
- 👤 Yamamoto Kazumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:47
CPC Classifications
C; C06; C06C; C06C7/00; F; F42; F42C; F42C11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN A DETONATOR HAVING A BAE CHARGE, AND A PRIMER CHARGE AGAINST THE BASE CHARGE, THEAT IMPROVEMENT COMPRISING A PRIMING SPONGE FORMING AT LEAST A PART OF SAID PRIMER CHARGE, SAID PRIMING SPONGE CONSISTING ESSENTIALLY OF AN ELASTIC SPONGE HAVING INTERCONNECTED PORES AND BEING OF A LOW SPECIFIC GRAVITY MATERIAL SELECTED FROM THE GORUP CONSISTING OF POLYEHTYLENE, POLYURETHANE, POLYSTYROL, POLYVINYL CHLORIDE, POLYETHER, VISCOSES AND CELLULOSE ACETATE, AND A PRIMER COMPOSITION IMPRENATED IN SAID ELASTIC SPONGE.
Claim 2
Dependent Claim
75 words
IN A DETONATOR HAVING A BAE CHARGE, AND A PRIMER CHARGE AGAINST THE BASE CHARGE, THEAT IMPROVEMENT COMPRISING A PRIMING SPONGE FORMING AT LEAST A PART OF SAID PRIMER CHARGE, SAID PRIMING SPONGE CONSISTING ESSENTIALLY OF AN ELASTIC SPONGE HAVING INTERCONNECTED PORES AND BEING OF A LOW SPECIFIC GRAVITY MATERIAL SELECTED FROM THE GORUP CONSISTING OF POLYEHTYLENE, POLYURETHANE, POLYSTYROL, POLYVINYL CHLORIDE, POLYETHER, VISCOSES AND CELLULOSE ACETATE, AND A PRIMER COMPOSITION IMPRENATED IN SAID ELASTIC SPONGE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |