US881848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-relief valve.
Assignee: Individual
•
Filing: 1907-04-08
•
Granted: 1908-03-10
•
Expires: 1927-04-08
Abstract
No abstract record available.
Inventors
- 👤 George W Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:55
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K17/0413; F16K17/0433; F16K17/0486; F16K31/00; F16K31/44; F16K31/52; F16K31/524; F16K31/52408; F16K31/60; F16K31/602; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7782; Y10T137/7835
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) | 1911-03-10 | 1911-09-09 | 1912-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-03-10 | 1915-09-09 | 1916-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-03-10 | 1919-09-09 | 1920-03-10 | $7700.00 | Window Closed / Lapsed |