Patent US2756003A successfully refreshed from Google Patents.
US2756003A
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US
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Method of forming and preparing tubular coil supports
Assignee: Individual
•
Filing: 1953-08-25
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Granted: 1956-07-24
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Expires: 1973-08-25
Abstract
No abstract record available.
Inventors
- 👤 William F Stahi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:41
CPC Classifications
H; H01; H01F; H01F5/00; H01F5/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1652992A
Cited
US1625470A
Cited
US1625471A
Cited
US2274681A
Cited
US2343096A
Cited
US2659543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |