US1497054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic shut-off valve
Assignee: Individual
•
Filing: 1921-12-19
•
Granted: 1924-06-10
•
Expires: 1941-12-19
Abstract
No abstract record available.
Inventors
- 👤 Rodney N Allabach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:55
CPC Classifications
F; F16; F16K; F16K43/00; F16K43/005; Y; Y10; Y10S; Y10S137/00; Y10S137/901
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) | 1927-06-10 | 1927-12-10 | 1928-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-06-10 | 1931-12-10 | 1932-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-06-10 | 1935-12-10 | 1936-06-10 | $7700.00 | Window Closed / Lapsed |