US2434086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating system
Assignee: Individual
•
Filing: 1944-12-07
•
Granted: 1948-01-06
•
Expires: 1964-12-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Samuel W Traylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:35
CPC Classifications
F; F24; F24D; F24D1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US765423A
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US839561A
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US944183A
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US961734A
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US1585257A
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US1830051A
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US1654759A
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US1669880A
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US1702979A
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US1868555A
Cited
US2199840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |