US3201286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of boronizing
Assignee: Motors Liquidation Co
•
Filing: 1962-03-15
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Granted: 1965-08-17
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Expires: 1982-03-15
Abstract
No abstract record available.
Inventors
- 👤 Vernon L Hill
- 👤 Thomas F Stapleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:46
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/40; C23C8/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
THE PROCESS WHICH COMPRISES INTRODUCING INTO A FUSED BORATE BATH A METAL HAVING A HIGHER FREE ENERGY OF OXIDE FORMATION THAN THAT OF BORON SO AS TO LIBERATE METALLIC BORON THEREIN, PLACING A SURFACE OF A METAL HAVING A MELTING POINT TEMPERATURE HIGHER THAN THE BATH TEMPERATURE IN CONTACT WITH SAID BATH WITHOUT EXTERNAL ELECTRON CONNECTION TO IMPREGNATE THE METAL WITH SAID LIBERATED BORON, AND MAINTAINING SAID CONTACT AT A BORONDIFFUSING TEMPERATURE FOR A SUFFICIENT DURATION TO IMPREGNATE SAID SURFACE WITH BORON.
Claim 2
Dependent Claim
82 words
THE PROCESS WHICH COMPRISES INTRODUCING INTO A FUSED BORATE BATH A METAL HAVING A HIGHER FREE ENERGY OF OXIDE FORMATION THAN THAT OF BORON SO AS TO LIBERATE METALLIC BORON THEREIN, PLACING A SURFACE OF A METAL HAVING A MELTING POINT TEMPERATURE HIGHER THAN THE BATH TEMPERATURE IN CONTACT WITH SAID BATH WITHOUT EXTERNAL ELECTRON CONNECTION TO IMPREGNATE THE METAL WITH SAID LIBERATED BORON, AND MAINTAINING SAID CONTACT AT A BORONDIFFUSING TEMPERATURE FOR A SUFFICIENT DURATION TO IMPREGNATE SAID SURFACE WITH BORON.
References Cited (Backward Citations)
US2465989A
Cited
US3024176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |