US1479877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nail-making machine
Assignee: Sleeper and Hartley Inc
•
Filing: 1921-05-23
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Granted: 1924-01-08
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Expires: 1941-05-23
Abstract
No abstract record available.
Inventors
- 👤 Frank H Sleeper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:05
CPC Classifications
B; B21; B21G; B21G3/00; B21G3/16; B21G3/18; B21G3/20
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) | 1927-01-07 | 1927-07-09 | 1928-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-01-07 | 1931-07-09 | 1932-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-01-07 | 1935-07-09 | 1936-01-08 | $7700.00 | Window Closed / Lapsed |