US3412836A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction disc of segmented elements
Assignee: Caterpillar Inc
•
Filing: 1967-03-06
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Granted: 1968-11-26
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Expires: 1987-03-06
Abstract
No abstract record available.
Inventors
- 👤 Rudolph G Wilmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:11
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16D65/00; F16D65/02; F16D2065/13; F16D2065/134; F16D2065/1356; F16D2065/1364; F16D2065/1368; F16D69/00
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) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |