US3102248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heater assembly
Assignee: Edwin L Wiegand Co
•
Filing: 1961-02-07
•
Granted: 1963-08-27
•
Expires: 1981-02-07
Abstract
No abstract record available.
Inventors
- 👤 Sidney J Temple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:32
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/42; H05B3/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2059008A
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US2127544A
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US2409004A
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US2812506A
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US2710385A
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US2677115A
Cited
US2782391A
Cited
US2760175A
Cited
US2840676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |