Patent US1241372A successfully refreshed from Google Patents.
US1241372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for operating the blow-off valves of centrifugal compressors or pumps.
Assignee: Sulzer Escher Wyss GmbH
•
Filing: 1913-07-08
•
Granted: 1917-09-25
•
Expires: 1933-07-08
Abstract
No abstract record available.
Inventors
- 👤 Hans Guyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:59
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02; F04D27/0207; F04D27/009
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) | 1920-09-24 | 1921-03-26 | 1921-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-09-24 | 1925-03-26 | 1925-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-09-24 | 1929-03-26 | 1929-09-25 | $7700.00 | Window Closed / Lapsed |