US732738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keys and key-seats for shafting.
Assignee: Individual
•
Filing: 1901-12-02
•
Granted: 1903-07-07
•
Expires: 1921-12-02
Abstract
No abstract record available.
Inventors
- 👤 Charles Hammen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:03
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/0876; F16D1/0882; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7021; Y10T403/7024
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) | 1906-07-06 | 1907-01-05 | 1907-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-07-06 | 1911-01-05 | 1911-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-07-06 | 1915-01-05 | 1915-07-07 | $7700.00 | Window Closed / Lapsed |