Patent US1610503A successfully refreshed from Google Patents.
US1610503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas compressor
Assignee: Standard Heating & Refrigerati
•
Filing: 1926-01-05
•
Granted: 1926-12-14
•
Expires: 1946-01-05
Abstract
No abstract record available.
Inventors
- 👤 Silas W C Fitts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:42
CPC Classifications
F; F04; F04C; F04C29/00; F04C29/02; F04C29/026; Y; Y10; Y10S; Y10S418/00; Y10S418/01
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) | 1929-12-13 | 1930-06-14 | 1930-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-12-13 | 1934-06-14 | 1934-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-12-13 | 1938-06-14 | 1938-12-14 | $7700.00 | Window Closed / Lapsed |