Patent US2525285A successfully refreshed from Google Patents.
US2525285A
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US
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Continuous method and apparatus for making coiled structures
Assignee: Whitney Blake Co
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Filing: 1946-02-23
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Granted: 1950-10-10
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Expires: 1966-02-23
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:51
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/02; B29C53/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US467098A
Cited
US481443A
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US2038488A
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US2173096A
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US2363826A
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US2388401A
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US2393058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |