US3204084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical deicer
Assignee: General Dynamics Corp
•
Filing: 1963-05-07
•
Granted: 1965-08-31
•
Expires: 1983-05-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Jessie H Spencer
- 👤 Dean T Bowden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:15
CPC Classifications
B; B64; B64D; B64D15/00; B64D15/12; H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B3/36; H05B2203/00; H05B2203/002; H05B2203/005; H05B2203/007; H05B2203/011; H05B2203/017; H05B2203/033; H05B2214/00; H05B2214/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
ELECTRICAL AIRCRAFT DEICING APPARATUS COMPRISING: A PLURALITY OF ELONGATED HEATING PANELS ON AN AERODYNAMIC SURFACE, SAID PANELS INCLUDING A FIRST LAYER OF ELECTRICAL INSULATING MATERIAL FASTENED TO SAID AERODYNAMIC SURFACE, A SECOND LAYER OF ELECTRICAL INSULATING MATERIAL OVERLYING SAID FIRST LAYER, A CYCLICALLY ENERGIZED RESISTANCE HEATING ELEMENT BETWEEN SAID FIRST AND SECOND LAYERS OF ELECTRICAL INSULATING MATERIAL,
Claim 2
Dependent Claim
57 words
ELECTRICAL AIRCRAFT DEICING APPARATUS COMPRISING: A PLURALITY OF ELONGATED HEATING PANELS ON AN AERODYNAMIC SURFACE, SAID PANELS INCLUDING A FIRST LAYER OF ELECTRICAL INSULATING MATERIAL FASTENED TO SAID AERODYNAMIC SURFACE, A SECOND LAYER OF ELECTRICAL INSULATING MATERIAL OVERLYING SAID FIRST LAYER, A CYCLICALLY ENERGIZED RESISTANCE HEATING ELEMENT BETWEEN SAID FIRST AND SECOND LAYERS OF ELECTRICAL INSULATING MATERIAL,
References Cited (Backward Citations)
US2129046A
Cited
US2627012A
Cited
US2543970A
Cited
US2762897A
Cited
US2743890A
Cited
GB740551A
Cited
US2741692A
Cited
US2757273A
Cited
US2992317A
Cited
US2938992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |