US2848683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calorimetric wattmeter
Assignee: Individual
•
Filing: 1955-10-27
•
Granted: 1958-08-19
•
Expires: 1975-10-27
Abstract
No abstract record available.
Inventors
- 👤 Mack C Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:58
CPC Classifications
G; G01; G01R; G01R21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1206304A
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FR548895A
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US1734837A
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DE719612C
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US2387158A
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US2398606A
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US2453645A
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US2648047A
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US2702368A
Cited
GB695166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |