Patent US2351706A successfully refreshed from Google Patents.
US2351706A
Expired / Lapsed
US
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Apparatus for treating plastic material in a controlled atmosphere
Assignee: Individual
•
Filing: 1943-11-16
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Granted: 1944-06-20
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Expires: 1963-11-16
Abstract
No abstract record available.
Inventors
- 👤 Robinson Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:03
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/02; B29B7/22; B29B7/24; B29B7/246; B01; B01F; B01F35/00; B01F35/79; B29B7/06; B29B7/10; B29B7/18; B29B7/183; B29B7/248; B29B7/26; B29B7/263; B29B7/266; B29B7/74; B29B7/7476; B29B7/7495; B29B7/80; B29B7/84; B29B7/842; B29B7/845; Y; Y10; Y10S; Y10S425/00; Y10S425/812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1947-06-20 | 1947-12-20 | 1948-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-06-20 | 1951-12-20 | 1952-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-06-20 | 1955-12-20 | 1956-06-20 | $7700.00 | Window Closed / Lapsed |