US1342667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for relief-valves
Assignee: Individual
•
Filing: 1919-06-06
•
Granted: 1920-06-08
•
Expires: 1939-06-06
Abstract
No abstract record available.
Inventors
- 👤 John M Dougherty
- 👤 Harry C Tabler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:12
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/20; F24H9/2007; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1789; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/7836
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) | 1923-06-08 | 1923-12-08 | 1924-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-06-08 | 1927-12-08 | 1928-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-06-08 | 1931-12-08 | 1932-06-08 | $7700.00 | Window Closed / Lapsed |