Patent US4608045A successfully refreshed from Google Patents.
US3662052A
Expired / Lapsed
US
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Impact molding of oxybenzoyl polyesters
Assignee: BP Corp North America Inc
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Filing: 1969-05-28
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Granted: 1972-05-09
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Expires: 1989-05-28
Abstract
Abstract PROCESSES FOR FORMING SHAPED POLYESTER ARTICLES OF AN OXYBENZOYL POLYESTER COMPRISING COMPRESSING GRANULES OF THE OXYBENZOYL POLYESTER INTO A SLUG AND IMPACT COMPRESSING THE SAID SLUG INTO A DESIRED SHAPE BY IMPARTING TO SAID SLUG AN ENERGY OF FROM 10,000 FOOT POUNDS TO 150,000 FOOT POUNDS.
Inventors
- 👤 Bernard E Nowak
- 👤 James Economy
- 👤 Steve G Cottis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:59
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/04; B; B29; B29C; B29C43/00; B29C43/003; B29C43/02; B29C43/16; B29K; B29K2067/00; B29K2105/00; B29K2105/25; B29K2105/251; B29L; B29L2031/00; B29L2031/04
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |