Patent US2832571A successfully refreshed from Google Patents.
US2832571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid heating apparatus
Assignee: Babcock and Wilcox Co
•
Filing: 1954-07-12
•
Granted: 1958-04-29
•
Expires: 1974-07-12
Abstract
No abstract record available.
Inventors
- 👤 Clyde B Baver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:23
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/16; F28D7/163; F28D7/1653; F22; F22D; F22D1/00; F22D1/36; F23; F23M; F23M20/00; Y; Y10; Y10S; Y10S165/00; Y10S165/921
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |