US2573455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated bed and control device
Assignee: Individual
•
Filing: 1947-12-16
•
Granted: 1951-10-30
•
Expires: 1967-12-16
Abstract
No abstract record available.
Inventors
- 👤 Lamont B Koontz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:26
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0227; H05B1/0252; H05B1/0272; A; A47; A47C; A47C21/00; A47C21/04; A47C21/048; A47C29/00; A47C29/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2251585A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |