US1635374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-level indicator
Assignee: AUTOMATIC APPLIANCE Co
•
Filing: 1921-06-09
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Granted: 1927-07-12
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Expires: 1941-06-09
Abstract
No abstract record available.
Inventors
- 👤 Lewis A Mapel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:15
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/14; G01F23/16; B; B60; B60K; B60K15/00; B60K15/03; B60K15/06; B60K15/061
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) | 1930-07-11 | 1931-01-10 | 1931-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-07-11 | 1935-01-10 | 1935-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-07-11 | 1939-01-10 | 1939-07-12 | $7700.00 | Window Closed / Lapsed |