US1786791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator equalizer valve
Assignee: Westinghouse Electric Corp
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Filing: 1927-09-28
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Granted: 1930-12-30
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Expires: 1947-09-28
Abstract
No abstract record available.
Inventors
- 👤 Matson C Terry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:07
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/02; F04B49/03; F25; F25B; F25B2600/00; F25B2600/02; F25B2600/026; F25B2600/0261; F25B49/00; F25B49/02; F25B49/022
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) | 1933-12-29 | 1934-06-30 | 1934-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-12-29 | 1938-06-30 | 1938-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-12-29 | 1942-06-30 | 1942-12-30 | $7700.00 | Window Closed / Lapsed |