US1860468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulating valve
Assignee: Pittsburgh Equitable Meter Co
•
Filing: 1927-06-08
•
Granted: 1932-05-31
•
Expires: 1947-06-08
Abstract
No abstract record available.
Inventors
- 👤 Allen D Maclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:53
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0106; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0647; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7754; Y10T137/7781; Y10T137/7793; Y10T137/7805; Y10T137/7807; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86767
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) | 1935-05-31 | 1935-11-30 | 1936-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-05-31 | 1939-11-30 | 1940-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-05-31 | 1943-11-30 | 1944-05-31 | $7700.00 | Window Closed / Lapsed |