US2569961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant heating installation
Assignee: Uniroyal Inc
•
Filing: 1950-05-19
•
Granted: 1951-10-02
•
Expires: 1970-05-19
Abstract
No abstract record available.
Inventors
- 👤 Elbert De F Tidd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:41
CPC Classifications
F; F24; F24D; F24D13/00; F24D13/02; F24D13/022; F24D13/024; Y; Y02; Y02B; Y02B30/00; Y10; Y10S; Y10S439/00; Y10S439/928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2502147A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |