US2557128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsating discharge power gas generator with pressure-actuated inlet and outlet valves
Assignee: Individual
•
Filing: 1945-01-29
•
Granted: 1951-06-19
•
Expires: 1965-01-29
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Magill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:39
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/02; F02K7/06; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7832; Y10T137/8593; Y10T137/87917; Y10T137/88054
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US403294A
Cited
FR560368A
Cited
US940162A
Cited
US982540A
Cited
US916726A
Cited
US1025251A
Cited
FR14716E
Cited
FR420509A
Cited
US1088761A
Cited
US1073717A
Cited
US1265309A
Cited
US1387166A
Cited
US1375601A
Cited
US1572508A
Cited
US1601248A
Cited
GB261071A
Cited
DE539037C
Cited
GB416030A
Cited
US2139284A
Cited
US2022900A
Cited
US2088954A
Cited
US2195025A
Cited
US2124462A
Cited
US2283863A
Cited
US2403398A
Cited
US2427284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |