US2868461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam heating control system
Assignee: Honeywell Inc
•
Filing: 1956-01-16
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Granted: 1959-01-13
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Expires: 1976-01-16
Abstract
No abstract record available.
Inventors
- 👤 Gene T Gaddis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:15
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/10; F24D19/1003; F24H; F24H15/00; F24H15/20; F24H15/242; F24H15/30; F24H15/355; F24H15/36; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1927; G05D23/193; G05D23/1932; G05D23/1934; G05D23/20; G05D23/24; Y; Y02; Y02B; Y02B30/00; Y02B30/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1951588A
Cited
US2094738A
Cited
US2076768A
Cited
US2105536A
Cited
US2282442A
Cited
US2245773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |