US3382306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming elastic polypropylene film
Assignee: Hercules LLC
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Filing: 1964-06-12
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Granted: 1968-05-07
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Expires: 1984-06-12
Abstract
No abstract record available.
Inventors
- 👤 George C Oppenlander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/27; B; B29; B29C; B29C55/00; C08K5/36; C08K5/43; B29C48/00; B29C48/001; B29C48/0018; B29C48/03; B29C48/07; B29C48/08
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) | 1971-05-07 | 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 |