US2942497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic temperature compensator
Assignee: Ralph N Brodie Co
•
Filing: 1956-07-30
•
Granted: 1960-06-28
•
Expires: 1976-07-30
Abstract
No abstract record available.
Inventors
- 👤 William F Berck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:43
CPC Classifications
G; G05; G05G; G05G23/00; G01; G01F; G01F15/00; G01F15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US452444A
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US1922882A
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US2222551A
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US2312105A
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US2438935A
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US2460863A
Cited
US2545152A
Cited
US2570410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |