US1811529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable apparatus for conditioning perishable products
Assignee: PRE COOLING CAR SERVICE CO
•
Filing: 1928-06-13
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Granted: 1931-06-23
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Expires: 1948-06-13
Abstract
No abstract record available.
Inventors
- 👤 Barstow Welch
- 👤 Day Fred John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:11
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/80; A23B7/00; A23B7/14; A23B7/144; A23B7/152; F; F25; F25D; F25D17/00; F25D17/04; F25D17/042; Y; Y10; Y10S; Y10S261/00; Y10S261/34; Y10S454/00; Y10S454/903
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) | 1934-06-22 | 1934-12-22 | 1935-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-22 | 1938-12-22 | 1939-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-22 | 1942-12-22 | 1943-06-23 | $7700.00 | Window Closed / Lapsed |