Patent US3500869A successfully refreshed from Google Patents.
US3500869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible flattened tubular open-ended article
Assignee: Wyeth Holdings LLC
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Filing: 1967-08-02
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Granted: 1970-03-17
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Expires: 1987-08-02
Abstract
No abstract record available.
Inventors
- 👤 Bruno Bengt Skoggard
- 👤 William Clinton Post
- 👤 Edward Peter Weierter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:05
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/12; B; B29; B29C; B29C63/00; B65; B65H; B65H81/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US882292A
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US2213290A
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US2690769A
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US2969812A
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US3022802A
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US3172427A
Cited
US3062241A
Cited
US3159183A
Cited
US3266527A
Cited
US3329173A
Cited
US3253619A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |