US1716705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-regulating valve
Assignee: Individual
•
Filing: 1926-09-30
•
Granted: 1929-06-11
•
Expires: 1946-09-30
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Mcewan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:00
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0675; G05D16/0683; G05D16/0686; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/5283; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7805; Y10T137/7809; Y10T137/7812; Y10T137/782; Y10T137/7831
Claims Analysis
Total Claims: 0
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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) | 1932-06-10 | 1932-12-10 | 1933-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-06-10 | 1936-12-10 | 1937-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-06-10 | 1940-12-10 | 1941-06-11 | $7700.00 | Window Closed / Lapsed |