US2715674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated mattress and sleeping pad
Assignee: Individual
•
Filing: 1953-03-12
•
Granted: 1955-08-16
•
Expires: 1973-03-12
Abstract
No abstract record available.
Inventors
- 👤 Howard C Abbott
- 👤 Thomas J Mcdermott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:09
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/342; H05B2203/00; H05B2203/002; H05B2203/003; H05B2203/014; H05B2203/017
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21474E
Cited
US1837117A
Cited
US1997899A
Cited
US2298181A
Cited
US2288232A
Cited
US2606996A
Cited
US2688070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-15 | 1959-02-14 | 1959-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-15 | 1963-02-14 | 1963-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-15 | 1967-02-14 | 1967-08-16 | $7700.00 | Window Closed / Lapsed |