Patent US6012946A successfully refreshed from Google Patents.
Patent US3295447A successfully refreshed from Google Patents.
US3295447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric match assembly and electric explosion initiators made therewith
Assignee: Zeneca Inc
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Filing: 1965-04-06
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Granted: 1967-01-03
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Expires: 1985-04-06
Abstract
No abstract record available.
Inventors
- 👤 William D Trevorrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:27
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/18; F42B3/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A MATCH ASSEMBLY COMPRISING A PAIR OF CONDUCTIVE TABS HAVING A BOTTOM PORTION, SAID TABS SEPARATED BY A LAYER OF NON-CONDUCTIVE MATERIAL, A BRIDGE WIRE CONNECTING SAID TABS ALONG SAID BOTTOM PORTION, AN IGNITION COMPOSITION IN IGNITABLE POSITION WITH SAID BRIDGE WIRE, SAID TABS HAVING A PORTION BROADER THAN SAID BOTTOM PORTION, SAID TABS AND SAID NON-CONDUCTING MATERIAL HAVING A PERFORATION THERETHROUGH, AND A PLUG OF SEMI-CONDUCTIVE MATERIAL POSITIONED IN SAID PERFORATION IN CONTACT WITH EACH MEMBER OF SAID PAIR OF TABS.
Claim 2
Dependent Claim
82 words
A MATCH ASSEMBLY COMPRISING A PAIR OF CONDUCTIVE TABS HAVING A BOTTOM PORTION, SAID TABS SEPARATED BY A LAYER OF NON-CONDUCTIVE MATERIAL, A BRIDGE WIRE CONNECTING SAID TABS ALONG SAID BOTTOM PORTION, AN IGNITION COMPOSITION IN IGNITABLE POSITION WITH SAID BRIDGE WIRE, SAID TABS HAVING A PORTION BROADER THAN SAID BOTTOM PORTION, SAID TABS AND SAID NON-CONDUCTING MATERIAL HAVING A PERFORATION THERETHROUGH, AND A PLUG OF SEMI-CONDUCTIVE MATERIAL POSITIONED IN SAID PERFORATION IN CONTACT WITH EACH MEMBER OF SAID PAIR OF TABS.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |