US2813302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for homogenizing plastic or plasticizable materials
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1954-10-20
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Granted: 1957-11-19
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Expires: 1974-10-20
Abstract
No abstract record available.
Inventors
- 👤 Howard G Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:00
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/42; B29B7/421; B29B7/422; B29B7/428; B29C; B29C48/00; B29C48/03; B29C48/04; B29C48/25; B29C48/36; B29C48/50; B29C48/505; B29C48/53; B29C48/535; B29C48/56; B29C48/575; B29C48/68; B29C48/685; B29C48/687; B29K; B29K2021/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US474561A
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US2200997A
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US2469999A
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US2632203A
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US2593265A
Cited
US2680879A
Cited
US2705131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |