US856944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hygrometer for regulating humidifying and heating systems.
Assignee: Individual
•
Filing: 1906-03-09
•
Granted: 1907-06-11
•
Expires: 1926-03-09
Abstract
No abstract record available.
Inventors
- 👤 Stuart W Cramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:31
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/12; G01N27/121
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) | 1910-06-10 | 1910-12-10 | 1911-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-06-10 | 1914-12-10 | 1915-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-06-10 | 1918-12-10 | 1919-06-11 | $7700.00 | Window Closed / Lapsed |