US1056842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety-vent for tank-cars.
Assignee: GEORGE B ROBBINS
•
Filing: 1909-06-16
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Granted: 1913-03-25
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Expires: 1929-06-16
Abstract
No abstract record available.
Inventors
- 👤 William E Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:30
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65D90/32; B65D90/34; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/1812; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/4456; Y10T137/4463; 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) | 1916-03-24 | 1916-09-23 | 1917-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-03-24 | 1920-09-23 | 1921-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-03-24 | 1924-09-23 | 1925-03-25 | $7700.00 | Window Closed / Lapsed |