US2595455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruder
Assignee: National Rubber Machinery Co
•
Filing: 1950-03-07
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Granted: 1952-05-06
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Expires: 1970-03-07
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Heston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:51
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/68; B29C48/685; B29C48/686; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/42; B29B7/428; B29B7/429; B29B7/58; B29B7/72; B29B7/80; B29B7/82; B29B7/826; B29B7/84; B29B7/845; B29C48/03; B29C48/395; B29C48/505; B29C48/52; B29C48/525; B29C48/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |