US2921173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warming blanket control
Assignee: Knapp Monarch Co
•
Filing: 1956-07-23
•
Granted: 1960-01-12
•
Expires: 1976-07-23
Abstract
No abstract record available.
Inventors
- 👤 John J Kueser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:52
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0213; H01; H01H; H01H19/00; H01H19/02; H01H19/025; H01H37/00; H01H37/02; H01H37/32; H01H37/52; H01H61/00; H01H61/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2279214A
Cited
US2320252A
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US2636959A
Cited
US2704803A
Cited
US2709216A
Cited
US2801317A
Cited
US2784289A
Cited
US2794896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |