US881733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for refrigeration.
Assignee: L A ROY
•
Filing: 1905-09-27
•
Granted: 1908-03-10
•
Expires: 1925-09-27
Abstract
No abstract record available.
Inventors
- 👤 Almerin R Sprague
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:07
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0007; F24F5/0017; 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) | 1911-03-10 | 1911-09-09 | 1912-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-03-10 | 1915-09-09 | 1916-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-03-10 | 1919-09-09 | 1920-03-10 | $7700.00 | Window Closed / Lapsed |