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US3462089A
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Mechanical defibering means
Assignee: Texas Instruments Inc
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Filing: 1966-12-21
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Granted: 1969-08-19
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Expires: 1986-12-21
Abstract
No abstract record available.
Inventors
- 👤 Bailey Duane Whitlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:48
CPC Classifications
D; D21; D21D; D21D1/00; D21D1/20; D21D1/30; D21D1/306; B; B02; B02C; B02C7/00; B02C7/11; B02C7/12; D21B; D21B1/00; D21B1/04; D21B1/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1424615A
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US1017914A
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US1248814A
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US2293422A
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US2756166A
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US2729146A
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US3064349A
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US3240437A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |