US2568586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Displacement or torque amplifier
Assignee: Automatic Temperature Control Co Inc
•
Filing: 1946-04-03
•
Granted: 1951-09-18
•
Expires: 1966-04-03
Abstract
No abstract record available.
Inventors
- 👤 Hunt Walter Leslie
- 👤 Macgeorge William Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:39
CPC Classifications
G; G01; G01R; G01R17/00; G01R17/02; G01R17/06; G01R17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1959804A
Cited
US2067953A
Cited
US1959805A
Cited
US2005884A
Cited
US2050629A
Cited
US2404868A
Cited
US2452862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |