US3560334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for incorporating additive dispersions to wet webs of paper
Assignee: Mead Corp
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Filing: 1969-01-27
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Granted: 1971-02-02
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Expires: 1989-01-27
Abstract
Abstract AN UPHILL APPLICATOR APPARATUS FOR INCORPORATING ADDITIVES TO WET WEBS OF PAPER. THE APPARATUS HAS PARTICULAR UTILITY FOR INCOPROATION OF DISPERSED ADDITIVES TO WET PAPER WEBS CONTAINING PRE-APPLIED FLOCCULENT MATERIALS, AND COMPRISES SUPPORTING FORAMINOUS WIRES, ADDITIVES DISPENSING HEAD BOX MEANS AND VACUUM MEANS FOR CONTROLING THE EXTENT PENETRATION OF THE ADDITIVE DISPERSION INTO THE PAPER WEB.
Inventors
- 👤 Hanns F Arledter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/24; D21H23/26; D21H23/28; D21H17/00; D21H17/63; D21H17/67; D21H21/00; D21H21/06; D21H21/10; D21H23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |