US2859132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas plating using nitrous oxide
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1956-05-09
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Granted: 1958-11-04
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Expires: 1976-05-09
Abstract
No abstract record available.
Inventors
- 👤 Leo J Novak
- 👤 Howard J Homer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:17
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/06; C23C16/16; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2956; Y10T442/00; Y10T442/30; Y10T442/3382; Y10T442/3398
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
THE METHOD OF GAS PLATING BRIGHT SMOOTH METAL COATINGS WHICH COMPRISES BRINGING A MIXTURE OF METALBEARING VAPOR AND A GASEOUS BRIGHTENER COMPOUND CONTAINING NITROGEN INTO CONTACT WITH THE ARTICLE TO BE PLATED, AND HEATING THE GASEOUS MIXTURE TO A TEMPERATURE SUFFICIENT TO CAUSE DECOMPOSITION OF THE METAL BEARING VAPOR AND DEPOSITION OF THE METAL CONSTITUENT ONTO THE SURFACE OF THE ARTICLE, SAID NITROGEN-CONTAINING COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF AMMONIA, METHENAMINE, NITROUS OXIDE, AND AMMONIUM HYDROXIDE.
Claim 2
Independent Claim
78 words
THE METHOD OF GAS PLATING BRIGHT SMOOTH METAL COATINGS WHICH COMPRISES BRINGING A MIXTURE OF METALBEARING VAPOR AND A GASEOUS BRIGHTENER COMPOUND CONTAINING NITROGEN INTO CONTACT WITH THE ARTICLE TO BE PLATED, AND HEATING THE GASEOUS MIXTURE TO A TEMPERATURE SUFFICIENT TO CAUSE DECOMPOSITION OF THE METAL BEARING VAPOR AND DEPOSITION OF THE METAL CONSTITUENT ONTO THE SURFACE OF THE ARTICLE, SAID NITROGEN-CONTAINING COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF AMMONIA, METHENAMINE, NITROUS OXIDE, AND AMMONIUM HYDROXIDE.
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) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |