Patent US3490312A successfully refreshed from Google Patents.
US3490312A
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US
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Expansible chamber device with hydrodynamic bearing pump and limited slip differential employing same
Assignee: Motors Liquidation Co
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Filing: 1968-05-31
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Granted: 1970-01-20
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Expires: 1988-05-31
Abstract
No abstract record available.
Inventors
- 👤 William R Seitz
- 👤 Arnold O Dehart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:14
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/20; F16H48/22; F16H48/06; F16H48/08; F16H48/27; F16H2048/085; F16H48/38; F16H48/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |