US3454309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic machine tool spindle assembly with backing-up mechanical antifriction bearing
Assignee: Brown and Sharpe Manufacturing Co
•
Filing: 1967-10-04
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Granted: 1969-07-08
•
Expires: 1987-10-04
Abstract
No abstract record available.
Inventors
- 👤 John Milton Ingham
- 👤 Paul Wilfrid Carrier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:10
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0662; F16C21/00; F16C35/00; F16C35/08; F16C35/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB462497A
Cited
US3305280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |