US2925255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft air conditioning system
Assignee: RTX Corp
•
Filing: 1955-11-30
•
Granted: 1960-02-16
•
Expires: 1975-11-30
Abstract
No abstract record available.
Inventors
- 👤 Walter C Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:10
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/06; B64D13/02; B64D13/04; B64D2013/0603
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2327664A
Cited
US2655174A
Cited
US2696975A
Cited
US2654580A
Cited
US2661763A
Cited
US2772621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |