US3475791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for separating,conveying and collecting woodpulp fibers as a uniform layer and apparatus for carrying out the same
Assignee: Johnson and Johnson
•
Filing: 1967-05-08
•
Granted: 1969-11-04
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Expires: 1987-05-08
Abstract
No abstract record available.
Inventors
- 👤 Charles A Brewster
- 👤 Charles H Plummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:21
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/18; D01; D01G; D01G5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US845721A
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US1380112A
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AT132427B
Cited
US2807054A
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US2937815A
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US3133318A
Cited
US3268954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |