US2686048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heating means
Assignee: Westinghouse Electric Corp
•
Filing: 1950-06-07
•
Granted: 1954-08-10
•
Expires: 1970-06-07
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Peck
- 👤 Roth Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:24
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/04; F24H3/0405
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1408987A
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US857381A
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US1286135A
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US1480645A
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US1572881A
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US1649925A
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US1671461A
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US1988845A
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US1986348A
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US2235401A
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US2264693A
Cited
US2463115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |