Patent US2497443A successfully refreshed from Google Patents.
US2497443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Form fitting heating pad
Assignee: Individual
•
Filing: 1946-02-01
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Granted: 1950-02-14
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Expires: 1966-02-01
Abstract
No abstract record available.
Inventors
- 👤 Josephine N Eatman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:59
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/08; A61F2007/0001; A61F7/007; A61F2007/0071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US90191A
Cited
US734213A
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US783827A
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US1159160A
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US1603001A
Cited
US1629626A
Cited
US1739625A
Cited
US2038275A
Cited
US2136043A
Cited
US2298361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |