Patent US943832A successfully refreshed from Google Patents.
US943832A
Expired / Lapsed
US
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Heating apparatus.
Assignee: Individual
•
Filing: 1907-04-17
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Granted: 1909-12-21
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Expires: 1927-04-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph Moses Ward Kitchen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:31
CPC Classifications
F; F24; F24D; F24D5/00; F28; F28D; F28D21/00; F28D21/0001; F28D21/0003; F28D21/0005; F28D21/0008
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) | 1912-12-20 | 1913-06-21 | 1913-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-12-20 | 1917-06-21 | 1917-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-12-20 | 1921-06-21 | 1921-12-21 | $7700.00 | Window Closed / Lapsed |