Patent US2686489A successfully refreshed from Google Patents.
US2686489A
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Method of reducing tube diameters
Assignee: IND WIRE CLOTH PRODUCTS CORP
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Filing: 1947-11-22
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Granted: 1954-08-17
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Expires: 1967-11-22
Abstract
No abstract record available.
Inventors
- 👤 Thankmar W Kaestner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:11
CPC Classifications
B; B21; B21D; B21D41/00; B21D41/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US286115A
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US444721A
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FR577311A
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US1836921A
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US2173759A
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US2162328A
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US2265723A
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US2284210A
Cited
US2449942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |