Patent US2879566A successfully refreshed from Google Patents.
US2879566A
Expired / Lapsed
US
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Method of forming round metal filaments
Assignee: Marvalaud Inc
•
Filing: 1956-02-16
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Granted: 1959-03-31
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Expires: 1976-02-16
Abstract
No abstract record available.
Inventors
- 👤 Robert B Pond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:10
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/005; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE46293C
Cited
US279346A
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US745786A
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US1092934A
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US1592140A
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US2489242A
Cited
US2639490A
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US2717416A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |