US801514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fitting or vacuum-valve for steam-heating systems.
Assignee: Individual
•
Filing: 1904-10-03
•
Granted: 1905-10-10
•
Expires: 1924-10-03
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Dexter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:09
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/12; F16K7/14; F16K7/16; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7043; Y10T137/7062; Y10T137/7065
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) | 1908-10-09 | 1909-04-10 | 1909-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-10-09 | 1913-04-10 | 1913-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-10-09 | 1917-04-10 | 1917-10-10 | $7700.00 | Window Closed / Lapsed |