Patent US3423922A successfully refreshed from Google Patents.
US3423922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Twisting fibrous strands
Assignee: Owens Corning
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Filing: 1967-06-19
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Granted: 1969-01-28
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Expires: 1987-06-19
Abstract
No abstract record available.
Inventors
- 👤 Roy E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:16
CPC Classifications
D; D01; D01H; D01H13/00; D01H13/30; D01H13/306; D01H1/00; D01H1/10; D01H1/105; D01H1/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1140497A
Cited
US1123239A
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US1418136A
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US1647303A
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US2042529A
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US2671304A
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US3014337A
Cited
US3111804A
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US3145524A
Cited
US3295306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |