US2664483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostat
Assignee: Individual
•
Filing: 1950-02-21
•
Granted: 1953-12-29
•
Expires: 1970-02-21
Abstract
No abstract record available.
Inventors
- 👤 William C Broekhuysen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:30
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/46; H01H37/12; H01H37/64; H01H37/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2402240A
Cited
US1378730A
Cited
US1827102A
Cited
US1942002A
Cited
US1992765A
Cited
US1976954A
Cited
US1933083A
Cited
US2244915A
Cited
US2441725A
Cited
US2516502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |