US3375211A
Expired / Lapsed
US
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Ultramicrocellular polymeric structures containing an inflatant
Assignee: EIDP Inc
•
Filing: 1967-02-14
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Granted: 1968-03-26
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Expires: 1987-02-14
Abstract
No abstract record available.
Inventors
- 👤 Parrish Robert Guy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:37
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/20; B29C44/00; B29C44/34; B29C44/36; B29C44/46; B29C44/50; B29C44/507; C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; Y; Y10; Y10S; Y10S264/00; Y10S264/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |