US2961964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for a boiler feed pump driven by a turbine
Assignee: Worthington Corp
•
Filing: 1956-01-26
•
Granted: 1960-11-29
•
Expires: 1976-01-26
Abstract
No abstract record available.
Inventors
- 👤 John G Williams
- 👤 Aarne A Luoma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:39
CPC Classifications
F; F04; F04D; F04D15/00; F04D15/0066; F22; F22D; F22D5/00; F22D5/18
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |