Patent US774811A successfully refreshed from Google Patents.
US774811A
Expired / Lapsed
US
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Air-refrigerating device.
Assignee: Individual
•
Filing: 1903-10-19
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Granted: 1904-11-15
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Expires: 1923-10-19
Abstract
No abstract record available.
Inventors
- 👤 James C Witter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:47
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0007; F24F5/0017; F24F1/00; F24F1/02; F24F1/04; Y; Y02; Y02E; Y02E60/00; Y02E60/14
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) | 1907-11-15 | 1908-05-16 | 1908-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-11-15 | 1912-05-16 | 1912-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-11-15 | 1916-05-16 | 1916-11-15 | $7700.00 | Window Closed / Lapsed |