Patent US865862A successfully refreshed from Google Patents.
US865862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostat for centrally-heated plants.
Assignee: Individual
•
Filing: 1904-01-22
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Granted: 1907-09-10
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Expires: 1924-01-22
Abstract
No abstract record available.
Inventors
- 👤 Robert Brukenhaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:48
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/1919; G05D23/1921
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) | 1910-09-09 | 1911-03-11 | 1911-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-09-09 | 1915-03-11 | 1915-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-09-09 | 1919-03-11 | 1919-09-10 | $7700.00 | Window Closed / Lapsed |