US2947623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precious metal rupture disc
Assignee: Engelhard Industries Inc
•
Filing: 1958-05-07
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Granted: 1960-08-02
•
Expires: 1978-05-07
Abstract
No abstract record available.
Inventors
- 👤 Arnold J Lincoln
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:59
CPC Classifications
C; C22; C22C; C22C5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A METHOD PROTECTING FLUID CONTAINERS FROM RUPTURE COMPRISING UTILIZATION OF A RUPTURE DISC IN SAID CONTAINER COMPOSED OF AN ALLOY FROM THE GROUP CONSISTING OF GOLD AND SILVER IN AMOUNTS OF FROM 99.0 TO 99.9 WEIGHT PERCENT, THE BALANCE COMPOSED OF AT LEAST TWO METALS TAKEN FROM THE GROUP CONSISTING OF PLATINUM, IRIDIUM, PALLADIUM, RHODIUM, RUTHENIUM, COPPER, IRON, NICKEL, CALCIUM, MANGANESE, LEAD, TIN, ZINC AND ANTIMONY, ONE METAL OF SAID GROUP BEING PRESENT IN AN AMOUNT OF FROM 0.1 TO LESS THAN 1 WEIGHT PERCENT OF THE ALLOY, THE AMOUNT OF SAID ONE METAL BEING GREATER THAN THE COMBINED AMOUNT OF ALL OTHER METALS OF SAID GROUP.
Claim 2
Independent Claim
107 words
A METHOD PROTECTING FLUID CONTAINERS FROM RUPTURE COMPRISING UTILIZATION OF A RUPTURE DISC IN SAID CONTAINER COMPOSED OF AN ALLOY FROM THE GROUP CONSISTING OF GOLD AND SILVER IN AMOUNTS OF FROM 99.0 TO 99.9 WEIGHT PERCENT, THE BALANCE COMPOSED OF AT LEAST TWO METALS TAKEN FROM THE GROUP CONSISTING OF PLATINUM, IRIDIUM, PALLADIUM, RHODIUM, RUTHENIUM, COPPER, IRON, NICKEL, CALCIUM, MANGANESE, LEAD, TIN, ZINC AND ANTIMONY, ONE METAL OF SAID GROUP BEING PRESENT IN AN AMOUNT OF FROM 0.1 TO LESS THAN 1 WEIGHT PERCENT OF THE ALLOY, THE AMOUNT OF SAID ONE METAL BEING GREATER THAN THE COMBINED AMOUNT OF ALL OTHER METALS OF SAID GROUP.
References Cited (Backward Citations)
US2440691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |