US3019537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keeper for an excavator tooth
Assignee: American Brake Shoe Co
•
Filing: 1959-01-06
•
Granted: 1962-02-06
•
Expires: 1979-01-06
Abstract
No abstract record available.
Inventors
- 👤 Stephenson Ferrald Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:02
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/28; E02F9/2808; E02F9/2816; E02F9/2833; E02F9/2841
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1907012A
Cited
US2258135A
Cited
US2325556A
Cited
US2721091A
Cited
US2772492A
Cited
US2846790A
Cited
US2927387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |