US2609834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air volume regulator for stokers
Assignee: Timken Detroit Axle Co
•
Filing: 1946-06-26
•
Granted: 1952-09-09
•
Expires: 1966-06-26
Abstract
No abstract record available.
Inventors
- 👤 John A Wilson
- 👤 Hansen John Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:04
CPC Classifications
F; F23; F23K; F23K3/00; F23K3/10; F23K3/12; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7786; Y10T137/7837; Y10T137/785
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1124575A
Cited
US1127644A
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US1898244A
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US2088023A
Cited
US2010694A
Cited
US2067932A
Cited
US2232981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |