US3380941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ablative thermal insulation composition of a silicone, epoxy resin, cork and curing agent
Assignee: Boeing North American Inc
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Filing: 1964-07-27
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Granted: 1968-04-30
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Expires: 1984-07-27
Abstract
No abstract record available.
Inventors
- 👤 David O Dittman
- 👤 James J Licari
- 👤 Glovak Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:47
CPC Classifications
C; C08; C08L; C08L63/00; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A CURABLE ABLATIVE COMPOSITION COMPRISING A MIXTURE OF: COMPONENT A WHICH COMPRISES: 40 TO 55 WEIGHT PERCENT OF A POLYMETHYL VINYL SILOXANE, 32 TO 42 WEIGHT PERCENT OF AN EPOXY RESIN THAT IS A CONDENSATION PRODUCT OF EPICHLOROHYDRIN AND BISPHENOL-A MIXED WITH BUTYL GLYCIDYL ETHER, AND FROM 10 TO 18 WEIGHT PERCENT OF 20-40 MESH CORK, AND A COMPONENT B WHICH COMPRISES: 50 TO 70 WEIGHT PERCENT OF A POLYAMIDE RESULTING FROM THE REACTION OF AMINO COMPOUNDS HAVING ONE OR MORE PRIMARY AMINO GROUPS AND FATTY ACIDS OF AT LEAST 18 CARBON ATOMS IN LENGTH, 7 TO 15 WEIGHT PERCENT OF CHLORINATED BIPHENYL, 7 TO 15 WEIGHT PERCENT OF ANTIMONY TRIOXIDE, AND 12 TO 30 WEIGHT PERCENT OF A SOLVENT FOR COMPONENT B.
Claim 2
Dependent Claim
123 words
A CURABLE ABLATIVE COMPOSITION COMPRISING A MIXTURE OF: COMPONENT A WHICH COMPRISES: 40 TO 55 WEIGHT PERCENT OF A POLYMETHYL VINYL SILOXANE, 32 TO 42 WEIGHT PERCENT OF AN EPOXY RESIN THAT IS A CONDENSATION PRODUCT OF EPICHLOROHYDRIN AND BISPHENOL-A MIXED WITH BUTYL GLYCIDYL ETHER, AND FROM 10 TO 18 WEIGHT PERCENT OF 20-40 MESH CORK, AND A COMPONENT B WHICH COMPRISES: 50 TO 70 WEIGHT PERCENT OF A POLYAMIDE RESULTING FROM THE REACTION OF AMINO COMPOUNDS HAVING ONE OR MORE PRIMARY AMINO GROUPS AND FATTY ACIDS OF AT LEAST 18 CARBON ATOMS IN LENGTH, 7 TO 15 WEIGHT PERCENT OF CHLORINATED BIPHENYL, 7 TO 15 WEIGHT PERCENT OF ANTIMONY TRIOXIDE, AND 12 TO 30 WEIGHT PERCENT OF A SOLVENT FOR COMPONENT B.
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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |