US2539255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam plant for servicing power and delivering industrial steam
Assignee: Rheinmetall Air Defence AG
•
Filing: 1945-11-15
•
Granted: 1951-01-23
•
Expires: 1965-11-15
Abstract
No abstract record available.
Inventors
- 👤 Karrer Josef
- 👤 Karrer Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:14
CPC Classifications
F; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/10; F01K23/103; Y; Y02; Y02E; Y02E20/00; Y02E20/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1621435A
Cited
US1874620A
Cited
US1931948A
Cited
DE627514C
Cited
US1978837A
Cited
US2203731A
Cited
US2374510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |