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Patent US1770765A successfully refreshed from Google Patents.
US1770765A
Expired / Lapsed
US
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Control for air conditioners
Assignee: Niagara Blower Co
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Filing: 1928-12-14
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Granted: 1930-07-15
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Expires: 1948-12-14
Abstract
No abstract record available.
Inventors
- 👤 Claude A Bulkeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:39
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; Y; Y10; Y10S; Y10S236/00; Y10S236/19; Y10S261/00; Y10S261/34
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) | 1933-07-14 | 1934-01-13 | 1934-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-07-14 | 1938-01-13 | 1938-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-07-14 | 1942-01-13 | 1942-07-15 | $7700.00 | Window Closed / Lapsed |