US3507019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing screens for papermaking
Assignee: Sayama Seisakusho KK
•
Filing: 1968-04-10
•
Granted: 1970-04-21
•
Expires: 1988-04-10
Abstract
No abstract record available.
Inventors
- 👤 Takuo Tate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:48
CPC Classifications
D; D06; D06M; D06M23/00; D06M23/06; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/55; D06M15/564; D06M15/70; D06M15/71; D06M23/16; D06M23/18; D21; D21F; D21F1/00; D21F1/0027
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3224182A
Cited
US3192599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-20 | 1973-10-20 | 1974-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-20 | 1977-10-20 | 1978-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-20 | 1981-10-20 | 1982-04-21 | $7700.00 | Window Closed / Lapsed |