Patent US2743890A successfully refreshed from Google Patents.
US2743890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated protective covering for aircraft
Assignee: Goodrich Corp
•
Filing: 1952-07-31
•
Granted: 1956-05-01
•
Expires: 1972-07-31
Abstract
No abstract record available.
Inventors
- 👤 Rue Albert M La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:49
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/10; C04B35/107; B; B64; B64D; B64D15/00; B64D15/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1032267A
Cited
US1362351A
Cited
US1965542A
Cited
FR853799A
Cited
US2406367A
Cited
US2496279A
Cited
US2464147A
Cited
US2564325A
Cited
US2568669A
Cited
US2550836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |