US2581484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process in pretreating vegetables and fruits before freezing
Assignee: Individual
•
Filing: 1947-08-07
•
Granted: 1952-01-08
•
Expires: 1967-08-07
Abstract
No abstract record available.
Inventors
- 👤 Helgerud Oyvind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:05
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/005; A23B7/0053; A23B7/04; A23B7/0441; A23B7/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US126148A
Cited
US1138888A
Cited
US1421750A
Cited
US1685511A
Cited
US1975009A
Cited
US1910749A
Cited
US1973634A
Cited
US2080179A
Cited
US2184275A
Cited
US2369765A
Cited
US2292447A
Cited
US2515025A
Cited
US2403871A
Cited
US2373521A
Cited
US2402672A
Cited
US2402679A
Cited
US2429785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |