Patent GB536701A successfully refreshed from Google Patents.
US246626A
Expired / Lapsed
US
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Warming and ventilating apartments by the sun's rays
Assignee: Individual
•
Filing: 1881-04-11
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Granted: 1881-09-06
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Expires: 1901-04-11
Abstract
No abstract record available.
Inventors
- 👤 Edward S Morse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
F; F24; F24S; F24S20/00; F24S20/60; F24S20/66; F24S70/00; F24S70/60; Y; Y02; Y02B; Y02B10/00; Y02B10/20; Y02E; Y02E10/00; Y02E10/40; Y02E10/44
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) | 1884-09-05 | 1885-03-07 | 1885-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1888-09-05 | 1889-03-07 | 1889-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1892-09-05 | 1893-03-07 | 1893-09-06 | $7700.00 | Window Closed / Lapsed |