US2731171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel handling system
Assignee: Bowser Inc
•
Filing: 1949-09-27
•
Granted: 1956-01-17
•
Expires: 1969-09-27
Abstract
No abstract record available.
Inventors
- 👤 Paul A Mankin
- 👤 Gerald J Klopfenstein
- 👤 James E Doelling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:42
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/28; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/6851; Y10T137/6918; Y10T137/6932; Y10T137/8593; Y10T137/87265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US802436A
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US2017345A
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US2160741A
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US2106596A
Cited
US2362559A
Cited
US2537266A
Cited
US2544917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |