Patent US3469475A successfully refreshed from Google Patents.
US3469475A
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US
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Apparatus for maintaining positional stability between a tool member and a workpiece
Assignee: Sperry Rand Canada Ltd
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Filing: 1967-04-14
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Granted: 1969-09-30
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Expires: 1987-04-14
Abstract
No abstract record available.
Inventors
- 👤 Gordon J Watt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:04
CPC Classifications
B; B23; B23Q; B23Q15/00; B23Q15/007; B23Q15/18; G; G05; G05B; G05B2219/00; G05B2219/30; G05B2219/41; G05B2219/41352; G05B2219/49; G05B2219/49169; G05B2219/50; G05B2219/50293; Y; Y10; Y10T; Y10T408/00; Y10T408/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1768377A
Cited
US2600453A
Cited
US3217568A
Cited
US3237486A
Cited
US3244029A
Cited
US3279285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |