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Patent US2826044A successfully refreshed from Google Patents.
US2826044A
Expired / Lapsed
US
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Alarm mechanism for refrigeration systems
Assignee: Individual
•
Filing: 1956-02-08
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Granted: 1958-03-11
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Expires: 1976-02-08
Abstract
No abstract record available.
Inventors
- 👤 Guy J Reer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:07
CPC Classifications
F; F25; F25B; F25B49/00; F25B49/005; F25B2500/00; F25B2500/22; F25B2500/222
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US173395A
Cited
USRE19700E
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US1944899A
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US2082035A
Cited
US2195990A
Cited
US2475069A
Cited
US2439331A
Cited
US2739576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |