Patent US2957205A successfully refreshed from Google Patents.
US2957205A
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US
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Process of forming screw threads on a cold rod of rigid thermoplastic material
Assignee: BLACK AND WEBSTER Inc
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Filing: 1956-08-01
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Granted: 1960-10-25
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Expires: 1976-08-01
Abstract
No abstract record available.
Inventors
- 👤 Barber Albert
- 👤 Hardy Rodman
- 👤 Rowbotham Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:14
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C59/021; B29C67/00; B29C67/0003; B29D; B29D1/00; B29L; B29L2001/00; B29L2001/002; B29L2001/007; Y; Y10; Y10S; Y10S264/00; Y10S264/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2239780A
Cited
US2244208A
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US2234994A
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US2291873A
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US2317409A
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US2392842A
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US2607956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |