US2723557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidity measuring probe
Assignee: AMERICAN INSTR CO Inc
•
Filing: 1951-04-06
•
Granted: 1955-11-15
•
Expires: 1971-04-06
Abstract
No abstract record available.
Inventors
- 👤 Carlton E Ohlheiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:38
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)
US2105683A
Cited
US2151404A
Cited
US2381299A
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US2435632A
Cited
US2526636A
Cited
US2494628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |