Patent US4381331B2 successfully refreshed from Google Patents.
US4381331B2
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US
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Non-sticking ply end turn-over bladder and method of manufacture thereof
Assignee: POLYMER ENTERPRISES CORP A DE CORP
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Filing: 1982-01-11
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Granted: 1988-05-03
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Expires: 2002-01-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:18
CPC Classifications
B; B29; B29C; B29C37/00; B29C37/0067; B29C37/0075; B32; B32B; B32B25/00; B32B25/10; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/24; B29D30/26; B29D2030/2614; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29L; B29L2022/00; B29L2022/02; B29L2022/025; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T442/00; Y10T442/30; Y10T442/3008; Y10T442/3016
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) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |