US2922479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling fluid circulation
Assignee: Individual
•
Filing: 1956-05-28
•
Granted: 1960-01-26
•
Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 Kinley Myron Macy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:22
CPC Classifications
E; E21; E21B; E21B34/00; E21B34/06; E21B34/063; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1669
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1854477A
Cited
US2208604A
Cited
US2379079A
Cited
US2506795A
Cited
US2568087A
Cited
US2710655A
Cited
US2723677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |