US2558523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-lubricating alloy
Assignee: Individual
•
Filing: 1948-12-27
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Granted: 1951-06-26
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Expires: 1968-12-27
Abstract
No abstract record available.
Inventors
- 👤 Paul E Luther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:41
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/08; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/12; F16C33/121; F16C2204/00; F16C2204/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A SELF-LUBRICATING METALLIC ALLOY, CONSISTING OF APPROXIMATELY 67 PER CENT BY WEIGHT OF COPPER, 16 PER CENT BY WEIGHT OF LEAD, 11 PER CENT BY WEIGHT OF TIN, 6 PER CENT BY WEIGHT OF GERMAN SILVER (20% NICKEL). 025 PER CENT BY WEIGHT EACH OF ANTIMONY AND A FLUX COMPOSED OF APPROXIMATELY PHORUS), AND A FLUX COMPOSED OF APPROXIMATELY 3 OUNCES OF BORAX, 2 OUNCES OF YELLOW SOAP, 1/4 OUNCES OF SULPHUR, AND 1 1/2 OUNCES OF A FATTY SUBSTANCE.
Claim 2
Dependent Claim
80 words
A SELF-LUBRICATING METALLIC ALLOY, CONSISTING OF APPROXIMATELY 67 PER CENT BY WEIGHT OF COPPER, 16 PER CENT BY WEIGHT OF LEAD, 11 PER CENT BY WEIGHT OF TIN, 6 PER CENT BY WEIGHT OF GERMAN SILVER (20% NICKEL). 025 PER CENT BY WEIGHT EACH OF ANTIMONY AND A FLUX COMPOSED OF APPROXIMATELY PHORUS), AND A FLUX COMPOSED OF APPROXIMATELY 3 OUNCES OF BORAX, 2 OUNCES OF YELLOW SOAP, 1/4 OUNCES OF SULPHUR, AND 1 1/2 OUNCES OF A FATTY SUBSTANCE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |