US1586798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus
Assignee: Refrigerating Specialties Co
•
Filing: 1921-10-03
•
Granted: 1926-06-01
•
Expires: 1941-10-03
Abstract
No abstract record available.
Inventors
- 👤 Charles C Hansen
- 👤 Herbert V Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:45
CPC Classifications
F; F25; F25B; F25B49/00; F25B49/02; F25B49/027; F25B49/025; F25B2339/00; F25B2339/04; F25B2339/047; F25B2600/00; F25B2600/25; F25B2600/2519; F25B2700/00; F25B2700/19; F25B2700/193; F25B2700/1933; F25B2700/21; F25B2700/2104; F25B2700/2115; F25B2700/21152; F25B2700/21156
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1929-05-31 | 1929-11-30 | 1930-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-05-31 | 1933-11-30 | 1934-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-05-31 | 1937-11-30 | 1938-06-01 | $7700.00 | Window Closed / Lapsed |