Patent US820127A successfully refreshed from Google Patents.
US820127A
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US
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Apparatus for the utilization of solar heat.
Assignee: Individual
•
Filing: 1905-02-13
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Granted: 1906-05-08
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Expires: 1925-02-13
Abstract
No abstract record available.
Inventors
- 👤 Charles Henry Pope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:33
CPC Classifications
F; F24; F24S; F24S30/00; F24S30/40; F24S30/45; F24S30/452; F24S23/00; F24S23/70; F24S23/71; F24S2030/10; F24S2030/13; F24S2030/133; F24S2030/14; F24S2030/145; F24S2030/15; F24S25/00; F24S25/10; F24S25/13; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/47
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) | 1909-05-07 | 1909-11-06 | 1910-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-05-07 | 1913-11-06 | 1914-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-05-07 | 1917-11-06 | 1918-05-08 | $7700.00 | Window Closed / Lapsed |