US2937029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool chuck with fluid transfer
Assignee: Magnetic Seal LLC
•
Filing: 1957-03-11
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Granted: 1960-05-17
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Expires: 1977-03-11
Abstract
No abstract record available.
Inventors
- 👤 George E Colby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:46
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/0009; B23Q1/0018; B23Q1/0027; B23Q1/0036; B23Q11/00; B23Q11/10; F; F16; F16L; F16L27/00; F16L27/08; F16L27/087; Y; Y10; Y10S; Y10S285/00; Y10S285/90; Y10T; Y10T279/00; Y10T279/17; Y10T279/17111
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2270927A
Cited
US2384281A
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US2589766A
Cited
US2565791A
Cited
US2533179A
Cited
GB678981A
Cited
US2777702A
Cited
US2772897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |