US2461940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquefied petroleum gas system
Assignee: Bastian Blessing Co
•
Filing: 1944-03-29
•
Granted: 1949-02-15
•
Expires: 1964-03-29
Abstract
No abstract record available.
Inventors
- 👤 Savin L Sundstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:05
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/04; F17C13/045; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6184; Y10T137/6188; Y10T137/6195
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1034628A
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US1864380A
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US1975929A
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US2076411A
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US2131271A
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US2172311A
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US2278580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |