US1067633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic check-valve for gas.
Assignee: Individual
•
Filing: 1913-03-15
•
Granted: 1913-07-15
•
Expires: 1933-03-15
Abstract
No abstract record available.
Inventors
- 👤 John Zander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:04
CPC Classifications
F; F16; F16K; F16K17/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7723; Y10T137/7728; Y10T137/7731; Y10T137/7732; Y10T137/7781; Y10T137/7793; Y10T137/7809; Y10T137/7812; Y10T137/7834
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) | 1916-07-14 | 1917-01-13 | 1917-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-07-14 | 1921-01-13 | 1921-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-07-14 | 1925-01-13 | 1925-07-15 | $7700.00 | Window Closed / Lapsed |