Patent US2612593A successfully refreshed from Google Patents.
US2612593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for electric steam generators
Assignee: Combustion Engineering Inc
•
Filing: 1947-07-25
•
Granted: 1952-09-30
•
Expires: 1967-07-25
Abstract
No abstract record available.
Inventors
- 👤 Harvey C Mittendorf
- 👤 Jr William L Paulison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:20
CPC Classifications
F; F22; F22B; F22B1/00; F22B1/28; F22B1/30; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2917
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1665793A
Cited
US1597362A
Cited
US1902842A
Cited
US2006631A
Cited
US1975086A
Cited
US2098913A
Cited
US2294501A
Cited
US2185786A
Cited
US2453210A
Cited
US2485999A
Cited
US2453211A
Cited
US2485762A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |