Patent US2867989A successfully refreshed from Google Patents.
US2867989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water separator de-icing control
Assignee: RTX Corp
•
Filing: 1955-02-17
•
Granted: 1959-01-13
•
Expires: 1975-02-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Mcguff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:10
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/02; B64D13/04; B64D13/06; F; F24; F24F; F24F11/00; F24F11/89; F24F3/00; F24F3/12; F24F3/14; F24F5/00; F24F5/0085; B64D2013/0603; B64D2013/0662; B64D2013/0666; Y; Y10; Y10S; Y10S55/00; Y10S55/25; Y10S55/43
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |