Patent US1228757A successfully refreshed from Google Patents.
US1228757A
Expired / Lapsed
US
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Clock attachment for electric thermostats.
Assignee: Honeywell Inc
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Filing: 1916-01-18
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Granted: 1917-06-05
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Expires: 1936-01-18
Abstract
No abstract record available.
Inventors
- 👤 Frederick S Denison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:53
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/12; H01H37/14; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1902; G05D23/1904; G05D23/275
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) | 1920-06-04 | 1920-12-04 | 1921-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-06-04 | 1924-12-04 | 1925-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-06-04 | 1928-12-04 | 1929-06-05 | $7700.00 | Window Closed / Lapsed |