US3108900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and process for producing coatings on metals
Assignee: Individual
•
Filing: 1959-04-13
•
Granted: 1963-10-29
•
Expires: 1979-04-13
Abstract
No abstract record available.
Inventors
- 👤 Cornelius A Papp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:44
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/32; H01J37/32009; H01J37/32018; C; C23; C23C; C23C8/00; C23C8/06; C23C8/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A PROCESS FOR COATING METALS, CHARACTERIZED BY: CIRCULATING REPEATEDLY A COATING GAS AND A DILUENT GAS WITHIN A CLOSED LOOP SYSTEM AT PARTIAL PRESSURES CAPABLE OF SUSTAINING A GLOW DISCHARGE; PRODUCING A GLOW DISCHARGE IN A SELECTED REGION OF SAID SYSTEM; POSITIONING A SPECIMEN TO BE COATED CONTIGUOUS TO AND DOWNSTREAM OF SAID GLOW DISCHARGE TO COLLECT A DEPOSITE OF A PORTION OF SAID COATING GAS; SAID SUBSTANCE CARRIED DOWNSTREAM OF SAID GLOW DISCHARGE REGION, THE REMAINING PORTION OF SAID COATING GAS RECIRCULATING THROUGH SAID SYSTEMFOR SUBSEQUENT PASSAGE THROUGH SAID GLOW DISCHARGE AND TO THE AREA AROUND SAID SPECIMEN, AND ADDING ADDITIONAL COATING GAS INTO THE SYSTEM TO MAINTAIN THE PARTIAL PRESSURE AT A PREDETERMINED VALUE CAPABLE OF SUSTAINING A GLOW DISCHARGE.
Claim 2
Dependent Claim
122 words
A PROCESS FOR COATING METALS, CHARACTERIZED BY: CIRCULATING REPEATEDLY A COATING GAS AND A DILUENT GAS WITHIN A CLOSED LOOP SYSTEM AT PARTIAL PRESSURES CAPABLE OF SUSTAINING A GLOW DISCHARGE; PRODUCING A GLOW DISCHARGE IN A SELECTED REGION OF SAID SYSTEM; POSITIONING A SPECIMEN TO BE COATED CONTIGUOUS TO AND DOWNSTREAM OF SAID GLOW DISCHARGE TO COLLECT A DEPOSITE OF A PORTION OF SAID COATING GAS; SAID SUBSTANCE CARRIED DOWNSTREAM OF SAID GLOW DISCHARGE REGION, THE REMAINING PORTION OF SAID COATING GAS RECIRCULATING THROUGH SAID SYSTEMFOR SUBSEQUENT PASSAGE THROUGH SAID GLOW DISCHARGE AND TO THE AREA AROUND SAID SPECIMEN, AND ADDING ADDITIONAL COATING GAS INTO THE SYSTEM TO MAINTAIN THE PARTIAL PRESSURE AT A PREDETERMINED VALUE CAPABLE OF SUSTAINING A GLOW DISCHARGE.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |