US2788064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Model airplane fuel tank control
Assignee: Individual
•
Filing: 1955-06-13
•
Granted: 1957-04-09
•
Expires: 1975-06-13
Abstract
No abstract record available.
Inventors
- 👤 Walker Ray A Van De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:58
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/34; A; A63; A63H; A63H27/00; A63H27/02; F02B75/02; F02B2075/022; F02B2075/025; Y; Y10; Y10T; Y10T137/00; Y10T137/8593
Claims Analysis
Total Claims: 0
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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) | 1960-04-08 | 1960-10-08 | 1961-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-08 | 1964-10-08 | 1965-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-08 | 1968-10-08 | 1969-04-09 | $7700.00 | Window Closed / Lapsed |