US2589582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant stick
Assignee: Individual
•
Filing: 1949-08-12
•
Granted: 1952-03-18
•
Expires: 1969-08-12
Abstract
No abstract record available.
Inventors
- 👤 Strughold Peter
- 👤 Joseph F May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:54
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/04; F16H57/0463; B; B61; B61K; B61K3/00; B61K3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A HEAT RESISTANT SOLID COMPOSITION COMBINED OF 80 TO 90% AMORPHOUS GRAPHITE AND 20 TO 10% "BAKELITE" COMBINED UNDER HEAT AT A TEMPERA-TURE OF AT LEAST 250* FAHRENHEIT AND PRESSURE OF AT LEAST 15,000 POUNDS PER SQUARE INCH FOR A PERIOD OF APPROXIMATELY THREE HOURS TO FORM A LINEAR MEMBER FOR ENGAGEMENT WITH THE FLANGE OF A LOCOMOTIVE WHEEL TO EFFECT A NON-LIQUEFYING LUBRICATING COATING THEREON.
Claim 2
Dependent Claim
66 words
A HEAT RESISTANT SOLID COMPOSITION COMBINED OF 80 TO 90% AMORPHOUS GRAPHITE AND 20 TO 10% "BAKELITE" COMBINED UNDER HEAT AT A TEMPERA-TURE OF AT LEAST 250* FAHRENHEIT AND PRESSURE OF AT LEAST 15,000 POUNDS PER SQUARE INCH FOR A PERIOD OF APPROXIMATELY THREE HOURS TO FORM A LINEAR MEMBER FOR ENGAGEMENT WITH THE FLANGE OF A LOCOMOTIVE WHEEL TO EFFECT A NON-LIQUEFYING LUBRICATING COATING THEREON.
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) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |