Patent US2750510A successfully refreshed from Google Patents.
US3372962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spindle apparatus useful with rotating memory discs
Assignee: General Precision Systems Inc
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Filing: 1966-02-21
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Granted: 1968-03-12
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Expires: 1986-02-21
Abstract
No abstract record available.
Inventors
- 👤 Clarence R Linsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:01
CPC Classifications
F; F16; F16C; F16C27/00; F16C27/04; F16C35/00; F16C35/08; F16C35/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2216888A
Cited
US2625664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |