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US2702605A
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US
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Furnace control apparatus
Assignee: Siemens Industry Inc
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Filing: 1950-12-07
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Granted: 1955-02-22
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Expires: 1970-12-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Strickland Kneass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:29
CPC Classifications
C; C10; C10B; C10B21/00; C10B21/10; C10B21/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR29476E
Cited
US952970A
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US1012301A
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US1183397A
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US1204906A
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US1221505A
Cited
US1202953A
Cited
FR587510A
Cited
US2382253A
Cited
US2537558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-21 | 1958-08-23 | 1959-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-21 | 1962-08-23 | 1963-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-21 | 1966-08-23 | 1967-02-22 | $7700.00 | Window Closed / Lapsed |