Patent US5171314A successfully refreshed from Google Patents.
US2256937A
Expired / Lapsed
US
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Suspension of rotatable bodies
Assignee: Research Corp
•
Filing: 1938-12-17
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Granted: 1941-09-23
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Expires: 1958-12-17
Abstract
No abstract record available.
Inventors
- 👤 Jesse W Beams
- 👤 Frederick T Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:00
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/04; F16C32/0406; F16C32/044; F16C32/0444; B; B04; B04B; B04B5/00; B04B5/08; B04B9/00; B04B9/12; G; G01; G01R; G01R11/00; G01R11/02; G01R11/12; G01R11/14
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) | 1944-09-22 | 1945-03-24 | 1945-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-09-22 | 1949-03-24 | 1949-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-09-22 | 1953-03-24 | 1953-09-23 | $7700.00 | Window Closed / Lapsed |