US3498873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Net structures of multicomponent filaments
Assignee: Dow Chemical Co
•
Filing: 1965-10-29
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Granted: 1970-03-03
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Expires: 1985-10-29
Abstract
No abstract record available.
Inventors
- 👤 Walter J Schrenk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:32
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/345; B29C48/03; B29C48/13; B29C48/301; B29C48/05; B29C48/09; B29C48/10; B29L; B29L2028/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2174779A
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US2573050A
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US2805465A
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US3035475A
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US3070840A
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BE643420A
Cited
US3281897A
Cited
US3308503A
Cited
US3411979A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |