US2763130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot gas defrosting system
Assignee: Individual
•
Filing: 1952-04-28
•
Granted: 1956-09-18
•
Expires: 1972-04-28
Abstract
No abstract record available.
Inventors
- 👤 Ray M Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:30
CPC Classifications
F; F25; F25B; F25B47/00; F25B47/02; F25B47/022; F25B5/00; Y; Y10; Y10S; Y10S62/00; Y10S62/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2433574A
Cited
US2452102A
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US2455421A
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US2451385A
Cited
US2525560A
Cited
US2589855A
Cited
US2564310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |