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Patent US902713A successfully refreshed from Google Patents.
US902713A
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US
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Differential thermostat.
Assignee: Buffalo Forge Co
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Filing: 1907-10-11
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Granted: 1908-11-03
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Expires: 1927-10-11
Abstract
No abstract record available.
Inventors
- 👤 Willis H Carrier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:38
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14
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) | 1911-11-03 | 1912-05-04 | 1912-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-11-03 | 1916-05-04 | 1916-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-11-03 | 1920-05-04 | 1920-11-03 | $7700.00 | Window Closed / Lapsed |