US893521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercury seal for gas-regulators.
Assignee: KENTON REGULATOR Co
•
Filing: 1907-09-26
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Granted: 1908-07-14
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Expires: 1927-09-26
Abstract
No abstract record available.
Inventors
- 👤 Cornelius P Kenton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:22
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/08; F16K13/10; Y; Y10; Y10T; Y10T137/00; Y10T137/4456; Y10T137/4643; Y10T137/4666
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) | 1911-07-14 | 1912-01-13 | 1912-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-07-14 | 1916-01-13 | 1916-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-07-14 | 1920-01-13 | 1920-07-14 | $7700.00 | Window Closed / Lapsed |