US1122989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot-water heating system.
Assignee: Individual
•
Filing: 1913-12-17
•
Granted: 1914-12-29
•
Expires: 1933-12-17
Abstract
No abstract record available.
Inventors
- 👤 Philip J Newkumet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:53
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/20; F24H9/2007; F24H9/2014; F24H9/2021; F24H1/00; F24H1/10; F24H1/12; F24H1/14; F24H1/16; F24H1/162; F24H15/00; F24H15/20; F24H15/212; F24H15/215; F24H15/223; F24H15/30; F24H15/355; F24H15/37
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) | 1917-12-28 | 1918-06-29 | 1918-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-12-28 | 1922-06-29 | 1922-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-12-28 | 1926-06-29 | 1926-12-29 | $7700.00 | Window Closed / Lapsed |