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Patent US2930594A successfully refreshed from Google Patents.
US2930594A
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US
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Personal thermal devices
Assignee: JET HEET Inc
•
Filing: 1954-06-25
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Granted: 1960-03-29
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Expires: 1974-06-25
Abstract
No abstract record available.
Inventors
- 👤 Calvin D Maccracken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:02
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/007; A61F2007/0054; Y; Y10; Y10S; Y10S236/00; Y10S236/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US500568A
Cited
FR709445A
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US2250325A
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US2272381A
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US2244280A
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US2397232A
Cited
US2585132A
Cited
US2587784A
Cited
US2692961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |