Patent US1539167A successfully refreshed from Google Patents.
US1539167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1919-10-01
•
Granted: 1925-05-26
•
Expires: 1939-10-01
Abstract
No abstract record available.
Inventors
- 👤 Diel Hugo
- 👤 James B Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:51
CPC Classifications
F; F01; F01L; F01L3/00; F01L3/06; F01L1/00; F01L1/32; F02; F02B; F02B2275/00; F02B2275/22; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10T; Y10T137/00; Y10T137/6198; Y10T137/6253; Y10T137/6307
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) | 1928-05-25 | 1928-11-24 | 1929-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-05-25 | 1932-11-24 | 1933-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-05-25 | 1936-11-24 | 1937-05-26 | $7700.00 | Window Closed / Lapsed |