US2357877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric control gauge
Assignee: HOTSTREAM HEATER CO
•
Filing: 1941-06-26
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Granted: 1944-09-12
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Expires: 1961-06-26
Abstract
No abstract record available.
Inventors
- 👤 Morris W Crew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:58
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02; G01L7/08; G01L7/084; H; H01; H01H; H01H35/00; H01H35/24; H01H35/26; H01H35/2607; H01H35/2628; H01H35/34
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) | 1947-09-12 | 1948-03-13 | 1948-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-09-12 | 1952-03-13 | 1952-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-09-12 | 1956-03-13 | 1956-09-12 | $7700.00 | Window Closed / Lapsed |