US3288983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical resistance de-icing means for aircraft windshields
Assignee: Gates LearJet Corp
•
Filing: 1963-07-29
•
Granted: 1966-11-29
•
Expires: 1983-07-29
Abstract
No abstract record available.
Inventors
- 👤 Sr William P Lear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:49
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/84; H05B3/86; B; B64; B64C; B64C1/00; B64C1/14; B64C1/1476; B64D; B64D15/00; B64D15/12; H05B2203/00; H05B2203/013
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |