US2498884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlling means for heating devices
Assignee: JOSEPHINE L OWENS
•
Filing: 1946-04-09
•
Granted: 1950-02-28
•
Expires: 1966-04-09
Abstract
No abstract record available.
Inventors
- 👤 Forbes Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:24
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0216
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US548904A
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US921308A
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US1689004A
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US1680809A
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US1781244A
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US1826477A
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US1900831A
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US2064389A
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US2044147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |