Patent US3967029A successfully refreshed from Google Patents.
US3967029A
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Boron-carbon alloy tape
Assignee: RTX Corp
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Filing: 1973-03-02
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Granted: 1976-06-29
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Expires: 1993-03-02
Abstract
Abstract A high strength composite tape suitable for use as a reinforcement in metal or resin matrices comprising a carbon tape substrate having a continuous, essentially amorphous boron-carbon alloy coating adhered thereto.
Inventors
- 👤 Richard D. Veltri
- 👤 Roy Fanti
- 👤 Francis Salvatore Galasso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:59
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/32; C23C16/44; C23C16/54; C23C16/545; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/30
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
60 words
A high strength composite tape at least one mil in thickness suitable for use as a reinforcement in resin or metal matrix composite articles comprising: a substrate consisting essentially of carbon tape; and a continuous coating adhered to the entire surface of said substrate consisting essentially of boron-carbon alloy, said coating consisting essentially of 15-40 atomic percent carbon, remainder boron.
Claim 2
Dependent Claim
60 words
A high strength composite tape at least one mil in thickness suitable for use as a reinforcement in resin or metal matrix composite articles comprising: a substrate consisting essentially of carbon tape; and a continuous coating adhered to the entire surface of said substrate consisting essentially of boron-carbon alloy, said coating consisting essentially of 15-40 atomic percent carbon, remainder boron.
Claim 3
Dependent Claim
29 words
The composite tape of claim 1 wherein said carbon tape substrate is at least 1/2 mil thick and said boron-carbon alloy coating is at least approximately 1/2 mil thick.
Claim 4
Dependent Claim
20 words
The composite tape of claim 1 wherein said alloy coating consists essentially of approximately 20-30 atomic percent carbon, remainder boron.
Claim 5
Dependent Claim
20 words
The composite tape of claim 1 wherein said alloy coating consists essentially of approximately 28 atomic percent carbon, remainder boron.
Claim 6
Dependent Claim
29 words
The composite tape of claim 3 wherein said carbon tape substrate is at least 1/2 mil thick and said boron-carbon alloy coating is at least approximately 1/2 mil thick.
Claim 7
Dependent Claim
29 words
The composite tape of claim 4 wherein said carbon tape substrate is at least 1/2 mil thick and said boron-carbon alloy coating is at least approximately 1/2 mil thick.
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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) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |