US2899740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thomas cox
Assignee: —
•
Filing: —
•
Granted: 1959-08-18
•
Expires: 1976-08-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:03
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/12; F16D65/127; F16D69/00; F16D69/02; F16D69/027; F16D69/04; F16D2069/0425; F16D2069/045; F16D2069/0458
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A FRICTION COMPOSITION PRODUCT FOR AIRCAFT BRAKES AND CONSISTING OF A PRESSED AND SINTERED MIXTURE OF ABOUT 10% BY WEIGHT OF DIVIDED GRAPHITE, OF COARSENESS SUCH THAT AT LEAST 80% WILL PASS THROUGH A 40 MESH SCREEN AND REMAIN ON A 100MESH SCREEN, ABOUT 10% BY WEIGHT OF FIG -01 SILICON CARBIDE, OF COARSENESS SUCH THAT AT LEAST 95% REMAINS ON A 100 MESH SCREENS, AND THE BALANCE IRON POWDER.
Claim 2
Dependent Claim
70 words
A FRICTION COMPOSITION PRODUCT FOR AIRCAFT BRAKES AND CONSISTING OF A PRESSED AND SINTERED MIXTURE OF ABOUT 10% BY WEIGHT OF DIVIDED GRAPHITE, OF COARSENESS SUCH THAT AT LEAST 80% WILL PASS THROUGH A 40 MESH SCREEN AND REMAIN ON A 100MESH SCREEN, ABOUT 10% BY WEIGHT OF FIG -01 SILICON CARBIDE, OF COARSENESS SUCH THAT AT LEAST 95% REMAINS ON A 100 MESH SCREENS, AND THE BALANCE IRON POWDER.
References Cited (Backward Citations)
US2072070A
Cited
US2784105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |