Patent US3033134A successfully refreshed from Google Patents.
US3033134A
Expired / Lapsed
US
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Method of and apparatus for regulating the air-borne material delivered through at least two branch conduits
Assignee: Babcock and Wilcox Co
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Filing: 1954-03-30
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Granted: 1962-05-08
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Expires: 1974-03-30
Abstract
No abstract record available.
Inventors
- 👤 Hennecke Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:42
CPC Classifications
F; F23; F23C; F23C3/00; F23C3/006; F23C3/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1370872A
Cited
US1454979A
Cited
US1420904A
Cited
US1496913A
Cited
US1532260A
Cited
GB518077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |