Patent US2461412A successfully refreshed from Google Patents.
Patent US2752473A successfully refreshed from Google Patents.
US2752473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic type temperature controller
Assignee: Babcock and Wilcox Co
•
Filing: 1952-06-26
•
Granted: 1956-06-26
•
Expires: 1972-06-26
Abstract
No abstract record available.
Inventors
- 👤 William T Hage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:42
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/22; G05D23/2236; G05D23/224
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1730254A
Cited
US2086120A
Cited
US2429827A
Cited
US2376488A
Cited
US2496860A
Cited
US2556065A
Cited
US2608635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |