US1712931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric water heater
Assignee: ELECTRIC SALES SERVICE Co
•
Filing: 1926-11-29
•
Granted: 1929-05-14
•
Expires: 1946-11-29
Abstract
No abstract record available.
Inventors
- 👤 Harry A Mulvany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:59
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/20; F24H9/2007; F24H9/2014; F24H9/2021; F24H15/00; F24H15/10; F24H15/174; F24H15/30; F24H15/355; F24H15/37
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) | 1932-05-13 | 1932-11-12 | 1933-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-05-13 | 1936-11-12 | 1937-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-05-13 | 1940-11-12 | 1941-05-14 | $7700.00 | Window Closed / Lapsed |