US2787694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
De-icing or anti-icing apparatus
Assignee: Napier Turbochargers Ltd
•
Filing: 1955-01-27
•
Granted: 1957-04-02
•
Expires: 1975-01-27
Abstract
No abstract record available.
Inventors
- 👤 Farries Alexander Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:17
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/84; H05B3/86; B; B64; B64D; B64D15/00; B64D15/12; H05B2203/00; H05B2203/013; H05B2214/00; H05B2214/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1172025A
Cited
US1996522A
Cited
US2622178A
Cited
US2527720A
Cited
US2648754A
Cited
US2622828A
Cited
US2627012A
Cited
US2641675A
Cited
US2665090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |