US2814243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baseboard air distributing duct
Assignee: BERGER FURNACE CORP
•
Filing: 1953-12-02
•
Granted: 1957-11-26
•
Expires: 1973-12-02
Abstract
No abstract record available.
Inventors
- 👤 Andrew H Berger
- 👤 Harry W Abrams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:03
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1809223A
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GB525222A
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US2355629A
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US2250330A
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FR882307A
Cited
US2567789A
Cited
US2585703A
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US2639655A
Cited
US2662747A
Cited
US2745332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |