US3071490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bond between a base metal and a sprayed-on metal layer
Assignee: Individual
•
Filing: 1959-05-13
•
Granted: 1963-01-01
•
Expires: 1979-05-13
Abstract
No abstract record available.
Inventors
- 👤 Pevar Maxwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:20
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN A METHOD OF IMPROVING THE BOND BETWEEN THE SURFACE OF A METAL BASE AND A MATERIAL SUPERIMPOSED THEREON, THE STEPS OF SPRAYING A THIN INTERMEDIATE METAL LAYER ON SAID SURFACE, OF FUSING SAID THIN LAYER TO SAID BASE SURFACE AND OF PITTING AND AT LEAST PARTLY TRANSFORMING IT INTO DROPLETS BY ELECTRIC ARCING, PRIOR TO THE APPLICATION OF SAID MATERIAL.
Claim 2
Dependent Claim
61 words
IN A METHOD OF IMPROVING THE BOND BETWEEN THE SURFACE OF A METAL BASE AND A MATERIAL SUPERIMPOSED THEREON, THE STEPS OF SPRAYING A THIN INTERMEDIATE METAL LAYER ON SAID SURFACE, OF FUSING SAID THIN LAYER TO SAID BASE SURFACE AND OF PITTING AND AT LEAST PARTLY TRANSFORMING IT INTO DROPLETS BY ELECTRIC ARCING, PRIOR TO THE APPLICATION OF SAID MATERIAL.
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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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |