US1745785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulator
Assignee: Airco Inc
•
Filing: 1927-03-04
•
Granted: 1930-02-04
•
Expires: 1947-03-04
Abstract
No abstract record available.
Inventors
- 👤 George M Deming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:36
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0663; G05D16/0666; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1789; Y10T137/6416; Y10T137/6851; Y10T137/7036; Y10T137/7043; Y10T137/7062; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822; Y10T137/7828; Y10T137/7829; Y10T137/794
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) | 1933-02-03 | 1933-08-05 | 1934-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-02-03 | 1937-08-05 | 1938-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-02-03 | 1941-08-05 | 1942-02-04 | $7700.00 | Window Closed / Lapsed |