US3536147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Replaceable ripper tip assembly
Assignee: Caterpillar Inc
•
Filing: 1968-01-10
•
Granted: 1970-10-27
•
Expires: 1988-01-10
Abstract
No abstract record available.
Inventors
- 👤 William F Norton
- 👤 Harris S Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:51
CPC Classifications
A; A01; A01B; A01B15/00; A01B15/02; A01B15/025; A01B13/00; A01B13/08; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7086; Y10T403/71; Y10T403/7123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |