US2836037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration system
Assignee: Mingledorff's LLC
•
Filing: 1955-02-07
•
Granted: 1958-05-27
•
Expires: 1975-02-07
Abstract
No abstract record available.
Inventors
- 👤 Walter H Carpenter
- 👤 Jr Walter L Mingledorff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:33
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/003; A; A23; A23B; A23B4/00; A23B4/06; A23B4/066; F25B; F25B27/00; F25B2327/00; F25B2327/10; F25B2327/12; F25B31/00; F25B31/006; F25D25/00; F25D25/02; F25D25/022; F25D31/00; F25D31/002; F25D31/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2613847A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |