US3573089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing screen cloths for papermaking
Assignee: Sayama Seisakusho KK
•
Filing: 1967-10-12
•
Granted: 1971-03-30
•
Expires: 1987-10-12
Abstract
Abstract A NOVEL METHOD OF MANUFACTURING A PAPERMAKING SCREEN CLOTH HAVING A HYDROPHILIC COATING IS DESCRIBED. THE METHOD CONSISTS OF APPLYING TO THE SURFACE OF THE WARPS AND WEFTS OF THE SCREEN CLOTH A SOLUTION OF AT LEAST ONE WATER SOLUBLE ORGANIC COMPOUND CONTAINING AT LEAST TWO HYDROPHILIC GROUPS, AT LEAST ONE OF THE HYDROPHILIC GROUPS CONTAINING AN ACTIVE HYDROGEN ATOM, AND A CONDENSING AGENT CAPABLE OF REACTING WITH THE ACTIVE HYDROGEN OF THE HYDROPHILIC GROUPS, WHEREBY THE CONDENSING AGENT REACTS WITH THE HYDROPHILIC GROUPS AND PART OF THE HYDROPHILIC GROUPS REMAINS UNREACTED AND FORMS A HYDROPHILIC FILM ON THE SURFACE OF THE SCREEN CLOTH.
Inventors
- 👤 Takuo Tate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:17
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/08; B01D39/083; B01D39/10; B01D39/12; D; D06; D06M; D06M13/00; D06M13/10; D06M13/12; D06M13/184; D06M13/188; D06M13/192; D06M13/203; D06M13/322; D06M13/395; D06M15/00; D06M15/19; D06M15/21; D06M15/244; D06M15/37; D06M15/39; D06M15/423; D06M15/507; D06M15/51; D06M15/55; D06M15/564; D06M15/59; D06M15/61; D06M23/00; D06M23/06; D21; D21F; D21F1/00; D21F1/0027; D21F1/10; B01D2239/00; B01D2239/04; B01D2239/0414; B01D2239/0428; B01D2239/0464; B01D2239/0471; B01D2239/0478; B01D2239/08; Y; Y10; Y10S; Y10S162/00; Y10S162/903; Y10T; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109; Y10T442/131; Y10T442/20; Y10T442/2139; Y10T442/2262; Y10T442/2311; Y10T442/2484; Y10T442/273
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |