US2953906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerant flow control apparatus
Assignee: Individual
•
Filing: 1955-05-09
•
Granted: 1960-09-27
•
Expires: 1975-05-09
Abstract
No abstract record available.
Inventors
- 👤 Lester K Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:32
CPC Classifications
F; F25; F25B; F25B43/00; F25B43/006; F25B47/00; F25B47/02; F25B47/022; F25B2341/00; F25B2341/001; F25B2341/0016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2534032A
Cited
US2530440A
Cited
US2614402A
Cited
US2589855A
Cited
US2641908A
Cited
US2701455A
Cited
US2787135A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |