US1258405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar heater.
Assignee: Individual
•
Filing: 1915-07-24
•
Granted: 1918-03-05
•
Expires: 1935-07-24
Abstract
No abstract record available.
Inventors
- 👤 David A Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
F; F24; F24S; F24S10/00; F24S10/70; F24S10/74; F24S10/742; F24S23/00; F24S23/70; F24S2023/83; F24S2023/831; F24S2023/84; Y; Y02; 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) | 1921-03-04 | 1921-09-03 | 1922-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-03-04 | 1925-09-03 | 1926-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-03-04 | 1929-09-03 | 1930-03-05 | $7700.00 | Window Closed / Lapsed |