US2429035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot-water steam flashing powergenerating apparatus and method with feed and furnace regulation
Assignee: Individual
•
Filing: 1945-04-30
•
Granted: 1947-10-14
•
Expires: 1965-04-30
Abstract
No abstract record available.
Inventors
- 👤 Jr John Steving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:32
CPC Classifications
F; F22; F22B; F22B3/00; F22B3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US653436A
Cited
US782624A
Cited
US1008797A
Cited
US1067101A
Cited
GB234093A
Cited
US1687615A
Cited
GB279249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-13 | 1951-04-14 | 1951-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-13 | 1955-04-14 | 1955-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-13 | 1959-04-14 | 1959-10-14 | $7700.00 | Window Closed / Lapsed |