Patent US933147A successfully refreshed from Google Patents.
US933147A
Expired / Lapsed
US
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Cylinder relief-valve.
Assignee: Individual
•
Filing: 1909-05-10
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Granted: 1909-09-07
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Expires: 1929-05-10
Abstract
No abstract record available.
Inventors
- 👤 Charles P White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:42
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; F; F15; F15B; F15B11/00; F15B11/08
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) | 1912-09-06 | 1913-03-08 | 1913-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-09-06 | 1917-03-08 | 1917-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-09-06 | 1921-03-08 | 1921-09-07 | $7700.00 | Window Closed / Lapsed |