US2789793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating connecting plate for rotary preheater
Assignee: Alstom Power Inc
•
Filing: 1952-11-14
•
Granted: 1957-04-23
•
Expires: 1972-11-14
Abstract
No abstract record available.
Inventors
- 👤 Theoclitus Gregory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:58
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/04; F28D19/047; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/013; Y10S165/016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1716132A
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US1891607A
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US2010930A
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US2229691A
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GB500682A
Cited
US2337956A
Cited
US2361692A
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US2549583A
Cited
US2468826A
Cited
US2480277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |