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US2473380A
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Combination diaphragm and clamp chuck
Assignee: Bryant Grinder Corp
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Filing: 1947-04-10
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Granted: 1949-06-14
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Expires: 1967-04-10
Abstract
No abstract record available.
Inventors
- 👤 Thor H Ljunggren
- 👤 Glenn M Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:04
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/32; Y; Y10; Y10T; Y10T279/00; Y10T279/31; Y10T279/33; Y10T279/34; Y10T279/3487
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1956318A
Cited
US1198612A
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US1812017A
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US1858693A
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US1915005A
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US2389366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |