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US2598293A
Expired / Lapsed
US
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Thawing pit for railway cars
Assignee: Hauck Manufacturing Inc
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Filing: 1951-06-06
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Granted: 1952-05-27
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Expires: 1971-06-06
Abstract
No abstract record available.
Inventors
- 👤 Melvin J Parker
- 👤 Alexander J Turpin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:11
CPC Classifications
B; B61; B61D; B61D7/00; B61D7/14; B61D7/32
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) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |