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US787339A
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Attachment for drop-hammers.
Assignee: Individual
•
Filing: 1904-10-22
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Granted: 1905-04-11
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Expires: 1924-10-22
Abstract
No abstract record available.
Inventors
- 👤 Robert Falconer Massa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:30
CPC Classifications
B; B21; B21D; B21D45/00; Y; Y10; Y10S; Y10S29/00; Y10S29/057; Y10S29/061; Y10S29/081; Y10S29/096; Y10T; Y10T74/00; Y10T74/21; Y10T74/2193; Y10T74/2194; Y10T74/2196; Y10T83/00; Y10T83/202; Y10T83/2066
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) | 1908-04-10 | 1908-10-10 | 1909-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-04-10 | 1912-10-10 | 1913-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-04-10 | 1916-10-10 | 1917-04-11 | $7700.00 | Window Closed / Lapsed |