US2982035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excavator tooth
Assignee: THOMAS C WHISLER
•
Filing: 1958-04-28
•
Granted: 1961-05-02
•
Expires: 1978-04-28
Abstract
No abstract record available.
Inventors
- 👤 Stephenson Ferrald Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:43
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)
CA475297A
Cited
US1174331A
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US1270670A
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US1696924A
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US1620132A
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US1834391A
Cited
US1879447A
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US2251169A
Cited
US2311463A
Cited
US2603009A
Cited
US2752702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |