US2381796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator car and method of using
Assignee: Industrial Patents Corp
•
Filing: 1943-06-21
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Granted: 1945-08-07
•
Expires: 1963-06-21
Abstract
No abstract record available.
Inventors
- 👤 Beverly E Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:32
CPC Classifications
B; B61; B61D; B61D27/00; B61D27/0072; B61D27/0081; Y; Y02; Y02T; Y02T30/00; Y10; Y10S; Y10S62/00; Y10S62/13
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) | 1948-08-06 | 1949-02-05 | 1949-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-08-06 | 1953-02-05 | 1953-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-08-06 | 1957-02-05 | 1957-08-07 | $7700.00 | Window Closed / Lapsed |