US2987871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinning ring and method of making same
Assignee: KLUTTZ MACHINE AND FOUNDRY CO
•
Filing: 1958-02-17
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Granted: 1961-06-13
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Expires: 1978-02-17
Abstract
No abstract record available.
Inventors
- 👤 John H Foard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:44
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/02; D01H7/52; D01H7/60; D01H7/602; C; C23; C23C; C23C8/00; C23C8/40; C23C8/52; C23C8/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US88840A
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US273090A
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US1595858A
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US1975058A
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US2492804A
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GB640536A
Cited
US2707159A
Cited
US2798357A
Cited
US2838430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |