US3023591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rate of flow control system for refrigeration
Assignee: Alco Valve Co
•
Filing: 1958-09-08
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Granted: 1962-03-06
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Expires: 1978-09-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Tilney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:39
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/33; F25B41/335; G05D7/0106; G05D7/0113; G05D7/0133; F25B2341/00; F25B2341/06; F25B2341/063; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7788; Y10T137/7792
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1578179A
Cited
US2058908A
Cited
US2021881A
Cited
US2219408A
Cited
US2195925A
Cited
US2326093A
Cited
GB563981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |