US2810331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for carrying out a transfer process
Assignee: Chemische Fabriek L Van der Grinten NV
•
Filing: 1954-05-10
•
Granted: 1957-10-22
•
Expires: 1974-05-10
Abstract
No abstract record available.
Inventors
- 👤 Grinten Lodewijk Evert Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:50
CPC Classifications
G; G03; G03D; G03D9/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1798414A
Cited
GB298965A
Cited
US1757950A
Cited
GB311509A
Cited
GB348579A
Cited
FR879995A
Cited
US2605684A
Cited
US2688333A
Cited
US2657618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |