US3725110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of coating articles with pyrolytic graphite and coated articles made in accordance with the process
Assignee: Goodrich Corp
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Filing: 1969-11-13
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Granted: 1973-04-03
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Expires: 1989-11-13
Abstract
Abstract A PROCESS OF PRODUCING A PYROLYTIC GRAPHITE COATING ON A SUBSTRATE WHICH WILL NOT PEEL OFF, AND COATING BEING DEPOSITED IN A TWO (2) STEP PROCESS WHEREIN FIRST THERE IS DEPOSITED A COATING OF PYROLYTIC GRAPHITE OR PYROLYTIC CARBON AT TEMPERATURES OF BETWEEN 900* AND 1350*C. AND SUBSEQUENTLY DEPOSITING A SECOND PYROLYTIC GRAPHITE COATING AT TEMPERATURES BETWEEN 1500* AND 1900*C. THE PYROLYTIC GRAPHITE OR PYROLYTIC CARBON COATED PRODUCT IS PRODUCED BY THE ABOVE PROCESS.
Inventors
- 👤 R Larsen
- 👤 J Rodgers
- 👤 R Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:05
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5001; C23; C23C; C23C16/00; C23C16/22; C23C16/26; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249956; Y10T428/249957; Y10T428/249967; Y10T428/30
Claims Analysis
Total Claims: 0
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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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |