Patent US2388294A successfully refreshed from Google Patents.
US2388294A
Expired / Lapsed
US
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Stoking apparatus
Assignee: Beazer East Inc
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Filing: 1940-03-15
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Granted: 1945-11-06
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Expires: 1960-03-15
Abstract
No abstract record available.
Inventors
- 👤 Chester E Shaffer
- 👤 Jr Albert Boyd Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:08
CPC Classifications
F; F23; F23H; F23H13/00; F23H13/02; F23K; F23K3/00; F23K3/10; F23K3/12; F23H2700/00; F23H2700/007; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1529
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-11-05 | 1949-05-07 | 1949-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-11-05 | 1953-05-07 | 1953-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-11-05 | 1957-05-07 | 1957-11-06 | $7700.00 | Window Closed / Lapsed |