US3188756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digging tooth with resilient plug in rearwardly extending shank
Assignee: Caterpillar Global Mining LLC
•
Filing: 1962-12-17
•
Granted: 1965-06-15
•
Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 Baer Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:32
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/28; E02F9/2808; E02F9/2816; E02F9/2833; E02F9/2841; F; F16; F16B; F16B2200/00; F16B2200/10; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/70; Y10T403/7018; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7086
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
103 words
IN AN EXCAVATOIR TOOTH FOR USE WITH A TOOTH RECEIVING BASE, THE COMBINATION COMPRISIING: A WEDGE SHAPED CUTTING PORTION; A SEATING ABUTMENT AT THE REAR OF SAID WEDGE SHAPED PORTION; A SHANK AT THE REAR OF SAID TOOTH AND HAVING A KEY EXTENDING TRANSVERSELY THERETHROUGH; AND A RESILIENT MEMBER POSITIONED IN SAID KEYWAY ALONG ONE SIDE THEREOF WHICH IS OF A MATERIAL SOFTER THAN THE OTHER PARTS OF SAID TOOTH AND WHICH HAS EXPOSED ENDS AT THE OPENINGS OF THE KEYWAY; SAID RESILIENT MEMBER ALSO BEING THICKER AT ITS ENDS THAN AT ITS CENTER, AND SAID KEYWAY BEING CONTOURED TO MATCH SAID MEMBER.
References Cited (Backward Citations)
US3126654A
Cited
US1874783A
Cited
US2258135A
Cited
US2702490A
Cited
US2772492A
Cited
US2846790A
Cited
US3012346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |