US2558708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature controlled fluid flow regulator
Assignee: Automatic Temperature Control Co Inc
•
Filing: 1948-05-14
•
Granted: 1951-06-26
•
Expires: 1968-05-14
Abstract
No abstract record available.
Inventors
- 👤 William D Macgeorge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:31
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/1919; G05D23/1921
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1819588A
Cited
US2349963A
Cited
US2286376A
Cited
US2339289A
Cited
US2434941A
Cited
US2498864A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |