US3387248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible electrical heating devices
Assignee: Midland Silicones Ltd
•
Filing: 1965-04-23
•
Granted: 1968-06-04
•
Expires: 1985-04-23
Abstract
No abstract record available.
Inventors
- 👤 Donald E W Rees
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:08
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/04; H05; H05B; H05B3/00; H05B3/02; H05B3/06; H05B3/10; H05B3/12; H05B3/14; H05B3/146
Claims Analysis
Total Claims: 0
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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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |