US2556221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous flow single point fuel servicing system for aircraft
Assignee: Individual
•
Filing: 1948-06-02
•
Granted: 1951-06-12
•
Expires: 1968-06-02
Abstract
No abstract record available.
Inventors
- 👤 Samiran David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:18
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/42; B64; B64D; B64D37/00; B64D37/02; B64D37/14; B64D37/20; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7361; Y10T137/7368; Y10T137/7371; Y10T137/7722; Y10T137/7723; Y10T137/773; Y10T137/8593; Y10T137/86292; Y10T137/86324; Y10T137/87917; Y10T137/87981
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US269886A
Cited
US1806833A
Cited
US925538A
Cited
US1022327A
Cited
US1263570A
Cited
US1370532A
Cited
US1333646A
Cited
US1725826A
Cited
US1776877A
Cited
DE492016C
Cited
US2120770A
Cited
US2211237A
Cited
US2234393A
Cited
US2247509A
Cited
US2266682A
Cited
US2304906A
Cited
US2334220A
Cited
US2356786A
Cited
US2343903A
Cited
US2345547A
Cited
US2384628A
Cited
US2464456A
Cited
US2491521A
Cited
US2477186A
Cited
US2458245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |