US3382220A
Expired / Lapsed
US
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Transparent linear polymers
Assignee: Phillips Petroleum Co
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Filing: 1964-02-03
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Granted: 1968-05-07
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Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Mark M Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:21
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/78; B29C48/86; B29C48/872; B29C48/022; B29C48/03; B29C48/06; B29C48/07; B29C48/08; B29C48/80; B29C48/83; B29C48/832; B29C48/865; B29C48/87; B29C48/001; B29C48/0018; B29C48/09; B29C48/10; B29C48/13; B29C48/36; B29C48/475; B29K; B29K2023/00; B29K2995/00; B29K2995/0018; B29K2995/0026; B29L; B29L2023/00; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/139
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2825721A
Cited
US2961711A
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US3141912A
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US3129461A
Cited
US3187383A
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US3212136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |