US913970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-pressure ram.
Assignee: PITTSBURG PNEUMATIC Co
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Filing: 1902-08-09
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Granted: 1909-03-02
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Expires: 1922-08-09
Abstract
No abstract record available.
Inventors
- 👤 Alfred Parfitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:39
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/14; B25D9/26; B25B; B25B21/00; B25B21/02
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) | 1912-03-01 | 1912-08-31 | 1913-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-03-01 | 1916-08-31 | 1917-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-03-01 | 1920-08-31 | 1921-03-02 | $7700.00 | Window Closed / Lapsed |