US2850083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellular fuel tank
Assignee: AV Roe Canada Ltd
•
Filing: 1952-10-08
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Granted: 1958-09-02
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Expires: 1972-10-08
Abstract
No abstract record available.
Inventors
- 👤 Frost John Carver Meadows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:50
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/02; B64D37/04; B64D37/14; B64D37/20; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86187; Y10T137/86228; Y10T428/00; Y10T428/24; Y10T428/24149
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) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |