Patent US2549032A successfully refreshed from Google Patents.
US2549032A
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Machine for and method of making spiral pipes
Assignee: Taylor Forge and Pipe Works
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Filing: 1948-11-19
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Granted: 1951-04-17
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Expires: 1968-11-19
Abstract
No abstract record available.
Inventors
- 👤 Taylor James Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:56
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/12; B21C37/122; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US183328A
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US1793280A
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US1583212A
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US1989796A
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US2063798A
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US2155859A
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US2237309A
Cited
US2316349A
Cited
US2265129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |