US2492092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material working apparatus
Assignee: Babcock and Wilcox Co
•
Filing: 1946-02-13
•
Granted: 1949-12-20
•
Expires: 1966-02-13
Abstract
No abstract record available.
Inventors
- 👤 Bulliet Leander Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:55
CPC Classifications
B; B23; B23B; B23B41/00; Y; Y10; Y10S; Y10S29/00; Y10S29/901; Y10T; Y10T29/00; Y10T29/17; Y10T408/00; Y10T408/05; Y10T408/16; Y10T408/17; Y10T408/173; Y10T408/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US841443A
Cited
US2243379A
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US2292846A
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US2324727A
Cited
US2389368A
Cited
US2434680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |