US1707564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiator for heating purposes
Assignee: Herman Nelson Co
•
Filing: 1923-06-21
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Granted: 1929-04-02
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Expires: 1943-06-21
Abstract
No abstract record available.
Inventors
- 👤 Gerald E Otis
- 👤 Shurtleff Wilfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:47
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/24; F28F1/30; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/053; F28D1/0535; F28D21/00; F28D2021/0019; F28D2021/0035; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935
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) | 1932-04-01 | 1932-10-01 | 1933-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-04-01 | 1936-10-01 | 1937-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-04-01 | 1940-10-01 | 1941-04-02 | $7700.00 | Window Closed / Lapsed |