Patent US3455884A successfully refreshed from Google Patents.
US3455884A
Expired / Lapsed
US
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Films,foils,and fibers on a basis of polyhydroxymethylenes
Assignee: Dynamit Nobel AG
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Filing: 1966-02-01
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Granted: 1969-07-15
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Expires: 1986-02-01
Abstract
No abstract record available.
Inventors
- 👤 Heinz Ratz
- 👤 Hans Schubel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:37
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/12; C08F8/30; C08F8/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3021340A
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US2794013A
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US2930779A
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US2918478A
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US2847402A
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US2847401A
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US3069391A
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US3344102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |