US3167449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming carbon coating
Assignee: General Electric Co
•
Filing: 1961-04-26
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Granted: 1965-01-26
•
Expires: 1981-04-26
Abstract
No abstract record available.
Inventors
- 👤 Henry S Spacil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:38
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/44; C23C16/50; C23C16/503; C23C16/22; C23C16/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A METHOD OF DEPOSITING AN ADHERENT CARBONACEOUS COATING ON A MEMBER WHICH COMPRISES PROVIDING A CHAMBER, POSITIONING AN ELECTRICALLY CONDUCTIVE MEMBER WITHIN SAID CHAMBER, SAID MEMBER HAVING A SIMILAR COEFFICIENT OF EXPANSION TO SAID COATING, POSITIONING AN ANODE WITHIN SAID CHAMBER SURROUNDING AND SPACED FROM SAID MEMBER, EVACUATING SAID CHAMBER, SUPPLYING A MIXTURE OF HYDROCARBON GAS AND A GAS SELECTED FROM THE GROUP CONSISTING OF ARGON, HELIUM, HYDROGEN, ARGON AND HYDROGEN, AND HELIUM AND HYDROGEN TO SAID CHAMBER, AND APPLYING A DISCHARGE WITHIN SAID CHAMBER WHEREBY A CARBONACEOUS COATING IS DEPOSITED ON SAID MEMBER, SAID DISCHARGE HAVING A CURRENT DENSITY OF 15 MILLIAMPERES PER SQUARE CENTIMETER TO 500 MILLIAMPERES PER SQUARE CENTIMETER.
Claim 2
Independent Claim
112 words
A METHOD OF DEPOSITING AN ADHERENT CARBONACEOUS COATING ON A MEMBER WHICH COMPRISES PROVIDING A CHAMBER, POSITIONING AN ELECTRICALLY CONDUCTIVE MEMBER WITHIN SAID CHAMBER, SAID MEMBER HAVING A SIMILAR COEFFICIENT OF EXPANSION TO SAID COATING, POSITIONING AN ANODE WITHIN SAID CHAMBER SURROUNDING AND SPACED FROM SAID MEMBER, EVACUATING SAID CHAMBER, SUPPLYING A MIXTURE OF HYDROCARBON GAS AND A GAS SELECTED FROM THE GROUP CONSISTING OF ARGON, HELIUM, HYDROGEN, ARGON AND HYDROGEN, AND HELIUM AND HYDROGEN TO SAID CHAMBER, AND APPLYING A DISCHARGE WITHIN SAID CHAMBER WHEREBY A CARBONACEOUS COATING IS DEPOSITED ON SAID MEMBER, SAID DISCHARGE HAVING A CURRENT DENSITY OF 15 MILLIAMPERES PER SQUARE CENTIMETER TO 500 MILLIAMPERES PER SQUARE CENTIMETER.
References Cited (Backward Citations)
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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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |