Patent US3186341A successfully refreshed from Google Patents.
US3186341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Igniter with separated layers of explosive
Assignee: Individual
•
Filing: 1961-10-06
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Granted: 1965-06-01
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Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
- 👤 Bjorklund John Olof
- 👤 Eldh John Alex Dorge
- 👤 Gustafsson Gosta Vilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:48
CPC Classifications
F; F42; F42C; F42C19/00; F42C19/08; F42C19/0815
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
AN IGNITER COMPRISING A SLEEVE CONTAINING A DETONATING MATERIAL, A NON-EXPLOSIVE PARTITION WALL EMBEDDED IN SAID DETONATING MATERIAL, SAID PARTITION WALL HAVING A AREA WHICH COMPLETELY FILLS THE TOLAT CROSS-SECTION OF SAID SLEEVE TO DIVIDE THE DETONATING MATERIAL INTO A THIN LAYER AND A MAIN LAYER, SAID THIN LAYER BEING AN INITIATING CHARGE LAYER COVERING ONE FACE OF SAID PARTITION WALL, SAID MAIN
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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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |