US3407625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor generator
Assignee: Babcock and Wilcox Co
•
Filing: 1966-09-01
•
Granted: 1968-10-29
•
Expires: 1986-09-01
Abstract
No abstract record available.
Inventors
- 👤 Bertrand N Mcdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:21
CPC Classifications
F; F25; F25B; F25B33/00; F25B15/00; F25B15/02; F25B15/04; F25B2333/00; F25B2333/003; F25B2333/006; Y; Y02; Y02A; Y02A30/00; Y02A30/27; Y02B; Y02B30/00; Y02B30/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1729355A
Cited
US1692839A
Cited
US1929444A
Cited
FR766665A
Cited
US2263031A
Cited
US2645209A
Cited
US2985438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |