Patent US2763308A successfully refreshed from Google Patents.
US2763308A
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Screen mounting for conduits and tubes for conveying fluids and for extrusion machines
Assignee: NAT PLASTIC PRODUCTS Co
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Filing: 1952-06-11
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Granted: 1956-09-18
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Expires: 1972-06-11
Abstract
No abstract record available.
Inventors
- 👤 Lee F Samler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:17
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/69; B29C48/691; B29C48/6912; B29C48/03; B29C48/09; Y; Y10; Y10T; Y10T137/00; Y10T137/794; Y10T137/8049
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1195576A
Cited
US642813A
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US642814A
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US2184177A
Cited
GB637137A
Cited
US2507311A
Cited
US2661497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |