US2566283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinnerette
Assignee: Baker and Co Inc
•
Filing: 1949-03-12
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Granted: 1951-08-28
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Expires: 1969-03-12
Abstract
No abstract record available.
Inventors
- 👤 Dowson Arthur Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:23
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/08; C03B37/095; C22; C22C; C22C5/00; C22C5/04; D; D01; D01D; D01D4/00; D01D4/02; D01D4/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A SPINNERETTE OF AN ALLOY OF PLATINUM WITH RHODIUM AND GOLD, WHICH ALLOY CONTAINS 4 TO 15% OF GOLD, 5 TO 15% OF RHODIUM AND THE BALANCE OF PLATINUM, THE PROPORTIONS BEING SO SELECTED THAT FOR GOLD CONTENTS LESS THAN 50% THE MINIUM RHODIUM CONTENT IS INCREASED ABOVE 5% BY AN AMOUNT EQUAL TO FIVE TIMES THE AMOUNT BY WHICH THE GOLD CONTENT IS BELOW 5%.
Claim 2
Dependent Claim
66 words
A SPINNERETTE OF AN ALLOY OF PLATINUM WITH RHODIUM AND GOLD, WHICH ALLOY CONTAINS 4 TO 15% OF GOLD, 5 TO 15% OF RHODIUM AND THE BALANCE OF PLATINUM, THE PROPORTIONS BEING SO SELECTED THAT FOR GOLD CONTENTS LESS THAN 50% THE MINIUM RHODIUM CONTENT IS INCREASED ABOVE 5% BY AN AMOUNT EQUAL TO FIVE TIMES THE AMOUNT BY WHICH THE GOLD CONTENT IS BELOW 5%.
References Cited (Backward Citations)
US1323834A
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US1378996A
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US1515464A
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DE585545C
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US2135611A
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US2071216A
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GB489375A
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FR825702A
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GB511513A
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US2273806A
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US2384502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |