Patent US2306391A successfully refreshed from Google Patents.
Patent US3085317A successfully refreshed from Google Patents.
US3085317A
Expired / Lapsed
US
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Coated graphite bodies
Assignee: Union Carbide Corp
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Filing: 1959-12-31
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Granted: 1963-04-16
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Expires: 1979-12-31
Abstract
No abstract record available.
Inventors
- 👤 Robert D Stackhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:51
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/51; C04B41/5133; C04B41/80; C04B41/81; C04B41/85; C04B41/88; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/937; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12625; Y10T428/12771; Y10T428/12806; Y10T428/12812; Y10T428/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A HIGH TEMPERATURE FLAME EROSION RESISTANT ARTICLE COMPRISING A GRAPHITE BODY MEMBER HAVING AN ARC-PLATED TANTALUM COATING THEREON AT LEAST 0.001-IN. THICK AND AN OUTER ARC-PLATED TUNGSTEN-CONTAINING COATING.
Claim 2
Dependent Claim
28 words
A HIGH TEMPERATURE FLAME EROSION RESISTANT ARTICLE COMPRISING A GRAPHITE BODY MEMBER HAVING AN ARC-PLATED TANTALUM COATING THEREON AT LEAST 0.001-IN. THICK AND AN OUTER ARC-PLATED TUNGSTEN-CONTAINING COATING.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |