US2885730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion apparatus
Assignee: Individual
•
Filing: 1953-03-30
•
Granted: 1959-05-12
•
Expires: 1973-03-30
Abstract
No abstract record available.
Inventors
- 👤 Barley Herman
- 👤 Bibby Ralph Dolman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:43
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2096338A
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US2122703A
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GB480508A
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US2143549A
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US2332170A
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US2455442A
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US2365326A
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US2512506A
Cited
US2648262A
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US2649034A
Cited
US2572677A
Cited
US2673370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |