Patent US2580290A successfully refreshed from Google Patents.
US2580290A
Expired / Lapsed
US
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Polyvinyl chloride plasticized with an ester and a petroleum extract
Assignee: Anglo Iranian Oil Co Ltd
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Filing: 1943-12-08
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Granted: 1951-12-25
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Expires: 1963-12-08
Abstract
No abstract record available.
Inventors
- 👤 Fawcett Eric William Musther
- 👤 Millien Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/01; C08K5/04; C08K5/10; C08K5/12; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2210434A
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US2220531A
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US2217988A
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US2350007A
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US2334582A
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US2374067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |