US1167919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety-valve.
Assignee: J C SPAULDING
•
Filing: 1915-08-17
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Granted: 1916-01-11
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Expires: 1935-08-17
Abstract
No abstract record available.
Inventors
- 👤 John Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:02
CPC Classifications
B; B60; B60S; B60S5/00; B60S5/04; B60S5/043; Y; Y10; Y10T; Y10T137/00; Y10T137/3584; Y10T137/36; Y10T137/3662; Y10T137/7722; Y10T137/7837; Y10T137/7838
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) | 1919-01-10 | 1919-07-12 | 1920-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-01-10 | 1923-07-12 | 1924-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-01-10 | 1927-07-12 | 1928-01-11 | $7700.00 | Window Closed / Lapsed |