Patent US3514557A successfully refreshed from Google Patents.
US2913182A
Expired / Lapsed
US
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Temperature control system for a storage water heater
Assignee: Individual
•
Filing: 1955-04-20
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Granted: 1959-11-17
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Expires: 1975-04-20
Abstract
No abstract record available.
Inventors
- 👤 Robert C Bryce
- 👤 Kahn Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:43
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/18; F24H1/20; F24H1/205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1108772A
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US1237403A
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US1421692A
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US1723567A
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US1991863A
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US2013713A
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US2102752A
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US2361944A
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US2806652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |