Patent US3407818A successfully refreshed from Google Patents.
US3407818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical heating belt
Assignee: Individual
•
Filing: 1966-10-10
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Granted: 1968-10-29
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Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 Raphael J Costanzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:13
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/007; A41; A41F; A41F9/00; A41F9/002; A61F2007/0001; A61F2007/0018; A61F2007/0026; A61F2007/0077; A61F2007/0078; A61F2007/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1594053A
Cited
US1736590A
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US2287915A
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US2584302A
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US2692326A
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US3031739A
Cited
US2993979A
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US3084241A
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US3079486A
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US3173419A
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US3293405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |