US3114970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing integral tanks by gas plating
Assignee: Union Carbide Corp
•
Filing: 1959-01-19
•
Granted: 1963-12-24
•
Expires: 1979-01-19
Abstract
No abstract record available.
Inventors
- 👤 John R Whitacre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:10
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/04; C23C16/045; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/938; Y10S428/939; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49888; Y10T29/49893
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
THE PROCESS OF SEALING PORES IN A WELDED TANK STRUCTURE HAVING PORTIONS THEREOF REETAINED TOGETHER BY A WELD HAVING PORES THERETHROUGH, SAID PROCESS COMPRISING THE STEPS OF INTRODUCING INTO THE CLOSED TANK STRUCTURE AN ATMOSPHER CONTAINING A THERMALLY DECOMPOSABLE METAL BEARING GASEOUS COMPOUND, MAINTAINING THE TEMPERATURE OF THE TANK STURCTURE BELOW THE DECOMPOSITION POINT OF THE METAL BEARING GASEOUS COMPOUND, BUILDING UP A PRESSURE OF THE GASEOUS COMPOUND WITHIN THE TANK TO CAUSE THE GASEOUS COMPOUND TO PENETRATE THE PORES OF SAID WELD, SELECTIVELY HEATING THE AREA OF THE WELD TO A TEMPERATURE HIGH ENOUGH TO CAUSE AT LEAST SOME THERMAL DECOMPOSITION OF THE METAL BEARING GASEOUS COMPOUND
Claim 2
Dependent Claim
108 words
THE PROCESS OF SEALING PORES IN A WELDED TANK STRUCTURE HAVING PORTIONS THEREOF REETAINED TOGETHER BY A WELD HAVING PORES THERETHROUGH, SAID PROCESS COMPRISING THE STEPS OF INTRODUCING INTO THE CLOSED TANK STRUCTURE AN ATMOSPHER CONTAINING A THERMALLY DECOMPOSABLE METAL BEARING GASEOUS COMPOUND, MAINTAINING THE TEMPERATURE OF THE TANK STURCTURE BELOW THE DECOMPOSITION POINT OF THE METAL BEARING GASEOUS COMPOUND, BUILDING UP A PRESSURE OF THE GASEOUS COMPOUND WITHIN THE TANK TO CAUSE THE GASEOUS COMPOUND TO PENETRATE THE PORES OF SAID WELD, SELECTIVELY HEATING THE AREA OF THE WELD TO A TEMPERATURE HIGH ENOUGH TO CAUSE AT LEAST SOME THERMAL DECOMPOSITION OF THE METAL BEARING GASEOUS COMPOUND
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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) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |