US2942601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand warmer
Assignee: Aladdin Manufacturing Corp
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Filing: 1957-08-01
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Granted: 1960-06-28
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Expires: 1977-08-01
Abstract
No abstract record available.
Inventors
- 👤 John W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:08
CPC Classifications
F; F24; F24C; F24C5/00; F24C5/20; F24C5/02; F24C5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |