US3497973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compact high strength replaceable cutting edge
Assignee: Caterpillar Inc
•
Filing: 1967-05-01
•
Granted: 1970-03-03
•
Expires: 1987-05-01
Abstract
No abstract record available.
Inventors
- 👤 Trevor G Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:27
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40; E02F3/401; E02F9/00; E02F9/28; E02F9/2808; E02F9/2816
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1009662A
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US1872307A
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US1963847A
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US2285039A
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US2390611A
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US2716824A
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US2911120A
Cited
US3219214A
Cited
US3160967A
Cited
US3345765A
Cited
US3349508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |