Patent US678450A successfully refreshed from Google Patents.
US678450A
Expired / Lapsed
US
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Pneumatic hammer.
Assignee: Individual
•
Filing: 1900-10-12
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Granted: 1901-07-16
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Expires: 1920-10-12
Abstract
No abstract record available.
Inventors
- 👤 Melvin A Yeakley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:26
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/08; F15B11/12; F15B11/121
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) | 1904-07-15 | 1905-01-14 | 1905-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-07-15 | 1909-01-14 | 1909-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-07-15 | 1913-01-14 | 1913-07-16 | $7700.00 | Window Closed / Lapsed |