US2470638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for working plastic material
Assignee: Onondaga Pottery Co
•
Filing: 1945-12-14
•
Granted: 1949-05-17
•
Expires: 1965-12-14
Abstract
No abstract record available.
Inventors
- 👤 Clifford H Parmelee
- 👤 Arthur J Briggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:18
CPC Classifications
B; B28; B28B; B28B13/00; B28B13/02; B28B13/0205; B28B1/00; B28B1/02; B28B5/00; B28B5/06; B28B5/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1145767A
Cited
US1423009A
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US1395161A
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US1430309A
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US2167386A
Cited
US2362058A
Cited
US2409221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-16 | 1952-11-15 | 1953-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-16 | 1956-11-15 | 1957-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-16 | 1960-11-15 | 1961-05-17 | $7700.00 | Window Closed / Lapsed |