US665391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casing for pneumatic hammers.
Assignee: Individual
•
Filing: 1900-05-04
•
Granted: 1901-01-01
•
Expires: 1920-05-04
Abstract
No abstract record available.
Inventors
- 👤 Frank J Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:47
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/10; F16F7/104; F16F7/108; B; B25; B25D; B25D17/00; B25D17/24; B25D2250/00; B25D2250/121; B25D2250/371
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) | 1904-01-01 | 1904-07-02 | 1905-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-01-01 | 1908-07-02 | 1909-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-01-01 | 1912-07-02 | 1913-01-01 | $7700.00 | Window Closed / Lapsed |