Patent US2988876A successfully refreshed from Google Patents.
US2988876A
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US
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Ignition of solid rocket propellants
Assignee: Phillips Petroleum Co
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Filing: 1957-12-26
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Granted: 1961-06-20
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Expires: 1977-12-26
Abstract
No abstract record available.
Inventors
- 👤 Ernest J Walden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:39
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/95; C; C06; C06C; C06C9/00; F42; F42C; F42C19/00; F42C19/08; F42C19/0803; F42C19/0819
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
AN IGNITER ASSEMBLY COMPRISING, IN COMBINATION, AN IGNITER PLUG, A CONTAINER ATTACHED TO SAID PLUG, PARTICULATE IGNITION MATERIAL IN SAID CONTAINER, MEANS TO IGNITE SAID IGNITION MATERIAL, PRIMARY IGNITION SUSTAINING MATERIAL IN SAID CONTAINER AND CONTIGUOUS WITH SAID PARTICULATE IGNITION MATERIAL, AND SECONDARY IGNITION SUSTAINING MATERIAL IN SAID CONTAINER CONTIGUOUS WITH SAID PRIMARY IGNITION SUSTAINING MATERIAL AND ISOLATED FROM SAID PARTICULATE IGNITION MATERIAL BY SAID PRIMARY IGNITION SUSTAINING MATERIAL, THE LATTER COMPRISING THE FOLLOWING COMPOSITION: SAID SECONDARY IGNITION SUSTAINING MATERIAL COMPRISING THE FOLLOWING COMPOSITION:
Claim 2
Dependent Claim
84 words
AN IGNITER ASSEMBLY COMPRISING, IN COMBINATION, AN IGNITER PLUG, A CONTAINER ATTACHED TO SAID PLUG, PARTICULATE IGNITION MATERIAL IN SAID CONTAINER, MEANS TO IGNITE SAID IGNITION MATERIAL, PRIMARY IGNITION SUSTAINING MATERIAL IN SAID CONTAINER AND CONTIGUOUS WITH SAID PARTICULATE IGNITION MATERIAL, AND SECONDARY IGNITION SUSTAINING MATERIAL IN SAID CONTAINER CONTIGUOUS WITH SAID PRIMARY IGNITION SUSTAINING MATERIAL AND ISOLATED FROM SAID PARTICULATE IGNITION MATERIAL BY SAID PRIMARY IGNITION SUSTAINING MATERIAL, THE LATTER COMPRISING THE FOLLOWING COMPOSITION: SAID SECONDARY IGNITION SUSTAINING MATERIAL COMPRISING THE FOLLOWING COMPOSITION:
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) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |