US2841341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary type machine for granulating polystyrene pellets
Assignee: Catalin Corp of America
•
Filing: 1953-08-28
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Granted: 1958-07-01
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Expires: 1973-08-28
Abstract
No abstract record available.
Inventors
- 👤 Aubrey E Noble
- 👤 Jr Charles F Anness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:21
CPC Classifications
B; B02; B02C; B02C18/00; B02C18/06; B02C18/16; B02C18/18; B02C18/186; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/25; B26D1/34; B26D1/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US577278A
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US821448A
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US920869A
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US1131230A
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US1973169A
Cited
US2639096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |