US910223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Throttle-valve for pneumatic hammers.
Assignee: AURORA AUTOMATIC MACHINERY Co
•
Filing: 1908-04-06
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Granted: 1909-01-19
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Expires: 1928-04-06
Abstract
No abstract record available.
Inventors
- 👤 Reinhold A Norling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:09
CPC Classifications
B; B25; B25F; B25F5/00; B25F5/02
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) | 1912-01-19 | 1912-07-20 | 1913-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-01-19 | 1916-07-20 | 1917-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-01-19 | 1920-07-20 | 1921-01-19 | $7700.00 | Window Closed / Lapsed |