US1798781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preservation of fresh fruits and vegetables by gas inhibition and refrigeration
Assignee: Individual
•
Filing: 1930-12-15
•
Granted: 1931-03-31
•
Expires: 1950-12-15
Abstract
No abstract record available.
Inventors
- 👤 Brooks Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/14; A23B7/144; A23B7/148
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) | 1934-03-30 | 1934-09-29 | 1935-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-03-30 | 1938-09-29 | 1939-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-03-30 | 1942-09-29 | 1943-03-31 | $7700.00 | Window Closed / Lapsed |