US2287178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming refrigerating apparatus
Assignee: Motors Liquidation Co
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Filing: 1938-10-22
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Granted: 1942-06-23
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Expires: 1958-10-22
Abstract
No abstract record available.
Inventors
- 👤 Hal C Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:03
CPC Classifications
B; B23; B23K; B23K28/00; B23K28/003; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T29/49377; Y10T29/49378; Y10T29/4938
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) | 1945-06-22 | 1945-12-22 | 1946-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-22 | 1949-12-22 | 1950-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-22 | 1953-12-22 | 1954-06-23 | $7700.00 | Window Closed / Lapsed |